Cleared unused OpenCL stuff
This commit is contained in:
Jose Luis Cercos-Pita
wmayer
parent
97e1c00c58
commit
12198fcf52
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@ -1,79 +0,0 @@
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/*
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* Copyright (c) 2011, 2012 *
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* Jose Luis Cercos Pita <jlcercos@gmail.com> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License (LGPL) *
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* as published by the Free Software Foundation; either version 2 of *
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* the License, or (at your option) any later version. *
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* for detail see the LICENCE text file. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this program; if not, write to the Free Software *
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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* USA *
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*/
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/** Compute residuals of the solution stimator for a linear system.
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* @param A Linear system matrix.
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* @param B Linear system independent term.
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* @param X Solution estimation.
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* @param R Residuals.
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* @param n Linear system dimension.
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*/
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__kernel void r(__global float* A,
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__global float* B,
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__global float* X,
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__global float* R,
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unsigned int n)
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{
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// find position in global arrays
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unsigned int i = get_global_id(0);
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unsigned int j;
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if(i >= n)
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return;
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// Evaluate the row
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R[i] = B[i];
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for(j=0;j<n;j++){
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R[i] -= A[j + i*n]*X[j];
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}
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}
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/** Solve a linear system using Jacobi iterative method.
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* @param A Linear system matrix.
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* @param B Linear system independent term.
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* @param X0 Solution of the previous iteration.
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* @param X Solution of the actual iteration.
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* @param w Relaxation factor.
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* @param n Linear system dimension.
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*/
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__kernel void jacobi(__global float* A,
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__global float* B,
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__global float* X0,
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__global float* X,
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float w,
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unsigned int n)
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{
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// find position in global arrays
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unsigned int i = get_global_id(0);
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unsigned int j;
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if(i >= n)
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return;
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// Evaluate the row
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X[i] = B[i];
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for(j=0;j<n;j++){
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if(i == j){
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continue;
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}
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X[i] += A[j + i*n]*X0[j];
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}
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X[i] *= w/A[i + i*n];
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X[i] += (1.f - w)*X0[i];
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}
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@ -1,152 +0,0 @@
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/***************************************************************************
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* *
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* Copyright (c) 2011, 2012 *
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* Jose Luis Cercos Pita <jlcercos@gmail.com> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License (LGPL) *
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* as published by the Free Software Foundation; either version 2 of *
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* the License, or (at your option) any later version. *
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* for detail see the LICENCE text file. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this program; if not, write to the Free Software *
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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* USA *
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* *
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***************************************************************************/
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/** Compute residuals of the solution stimator for a linear system.
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* @param A Linear system matrix.
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* @param B Linear system independent term.
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* @param X Solution estimation.
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* @param R Residuals.
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* @param n Linear system dimension.
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*/
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__kernel void r(__global float* A,
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__global float* B,
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__global float* X,
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__global float* R,
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unsigned int n)
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{
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// find position in global arrays
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unsigned int i = get_global_id(0);
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unsigned int j;
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if(i >= n)
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return;
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// Evaluate the row
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R[i] = B[i];
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for(j=0;j<n;j++){
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R[i] -= A[j + i*n]*X[j];
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}
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}
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/** Compute inner product between a matrix and a vector.
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* @param A Matrix.
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* @param X Vector.
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* @param Y Result.
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* @param n Linear system dimension.
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*/
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__kernel void dot_mat_vec(__global float* A,
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__global float* X,
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__global float* Y,
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unsigned int n)
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{
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// find position in global arrays
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unsigned int i = get_global_id(0);
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unsigned int j;
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if(i >= n)
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return;
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// Evaluate the row
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Y[i] = 0.f;
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for(j=0;j<n;j++){
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Y[i] += A[j + i*n]*X[j];
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}
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}
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/** Compute inner product between a transposed matrix and a vector.
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* @param A Matrix.
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* @param X Vector.
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* @param Y Result.
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* @param n Linear system dimension.
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*/
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__kernel void dot_matT_vec(__global float* A,
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__global float* X,
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__global float* Y,
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unsigned int n)
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{
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// find position in global arrays
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unsigned int i = get_global_id(0);
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unsigned int j;
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if(i >= n)
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return;
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// Evaluate the row
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Y[i] = 0.f;
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for(j=0;j<n;j++){
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Y[i] += A[i + j*n]*X[j];
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}
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}
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/** Create u vector for the next iteration.
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* @note u loads beta inside, you must compute
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* the norm and divide him.
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* @param A Linear system matrix.
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* @param u0 u vector from previous step.
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* @param v0 v vector from previous step.
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* @param u Looked u vector for next step.
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* @param alpha \$ \alpha_{i} \$.
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* @param n Linear system dimension.
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*/
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__kernel void u(__global float* A,
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__global float* u0,
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__global float* v0,
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__global float* u,
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float alpha,
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unsigned int n)
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{
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// find position in global arrays
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unsigned int i = get_global_id(0);
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unsigned int j;
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if(i >= n)
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return;
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// Evaluate the row
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u[i] = - alpha * u0[i];
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for(j=0;j<n;j++){
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u[i] += A[j + i*n]*v0[j];
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}
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}
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/** Create v vector for the next iteration.
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* @note v loads alpha inside, you must compute
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* the norm and divide him.
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* @param A Linear system matrix.
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* @param u u vector for next step.
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* @param v0 v vector from previous step.
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* @param v Looked v vector for next step.
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* @param beta \$ \beta_{i+1} \$.
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* @param n Linear system dimension.
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*/
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__kernel void v(__global float* A,
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__global float* u,
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__global float* v0,
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__global float* v,
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float beta,
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unsigned int n)
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{
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// find position in global arrays
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unsigned int i = get_global_id(0);
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unsigned int j;
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if(i >= n)
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return;
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// Evaluate the row
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v[i] = - beta * v0[i];
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for(j=0;j<n;j++){
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v[i] += A[i + j*n]*u[j];
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}
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}
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@ -1,326 +0,0 @@
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/*
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* Copyright (c) 2011, 2012 *
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* Jose Luis Cercos Pita <jlcercos@gmail.com> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License (LGPL) *
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* as published by the Free Software Foundation; either version 2 of *
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* the License, or (at your option) any later version. *
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* for detail see the LICENCE text file. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this program; if not, write to the Free Software *
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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* USA *
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*/
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#ifndef M_PI
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#define M_PI 3.14159265f
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#endif
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#ifndef _NG_
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#define _NG_ 16
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#endif
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/** Compute \$G_{ab}\$ effect: \n
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* \$ G_{ab} = \frac{1}{4 \pi \vert \mathbf{r} \vert } \$
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* @param r Union vector \$ \mathbf{r}_{ab} \$
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*/
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float G_val(float4 r)
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{
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return 1.f / ( 4.f*M_PI * length(r) );
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}
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/** Compute \$H_{ab}\$ effect: \n
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* \$ H_{ab} = \frac{\mathbf{r}}{4 \pi \vert \mathbf{r} \vert^3} \cdot n_b \$
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* @param r Union vector \$ \mathbf{r}_{ab} \$
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* @param n Element normal \$ n_b \$
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*/
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float H_val(float4 r,
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float4 n)
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{
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return - dot(r,n) / (4.f*M_PI * pow(dot(r,r),1.5f));
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}
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/** Computes z coordinate due to the waves superposition
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* for a desired position.
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* @param w Array of waves.
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* @param p Point to compute.
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* @param t Simulation time.
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* @param nW Number of waves.
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* @return z coordinate.
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*/
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float waves_z(__global float4* w, float4 p, float t, unsigned int nW)
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{
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/*
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return 0.f;
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*/
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unsigned int i;
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float z = 0.f;
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for(i=0;i<nW;i++){
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float omega = 2.f * M_PI / w[i].y;
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float k = omega * omega / 9.81f;
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float beta = w[i].w * M_PI / 180.f;
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float l = p.x*cos(beta) + p.y*sin(beta);
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z += w[i].x * sin(k*l - omega*t + w[i].z);
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}
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return z;
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}
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/** Computes velocity potential due to the waves superposition
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* for a desired position.
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* @param w Array of waves.
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* @param p Point to compute.
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* @param t Simulation time.
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* @param nW Number of waves.
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* @return z coordinate.
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*/
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float waves_phi(__global float4* w, float4 p, float t, unsigned int nW)
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{
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/*
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float4 r;
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r.w = 0.f;
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r.xy = p.xy;
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r.z = 15.f;
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return G_val(r);
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*/
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unsigned int i;
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float z = 0.f;
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for(i=0;i<nW;i++){
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float omega = 2.f * M_PI / w[i].y;
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float k = omega * omega / 9.81f;
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float beta = w[i].w * M_PI / 180.f;
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float l = p.x*cos(beta) + p.y*sin(beta);
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z -= w[i].x*omega/k * cos(k*l - omega*t + w[i].z)*exp(k*p.z);
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}
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return z;
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}
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/** Computes velocity potential gradient z coordinate
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* due to the waves superposition
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* for a desired position.
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* @param w Array of waves.
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* @param p Point to compute.
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* @param t Simulation time.
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* @param nW Number of waves.
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* @return z coordinate.
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*/
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float waves_gradphi(__global float4* w, float4 p, float t, unsigned int nW)
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{
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/*
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float4 r,n;
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r.w = 0.f;
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r.xy = p.xy;
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r.z = 15.f;
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n.x = 0.f;
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n.y = 0.f;
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n.z = 1.f;
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n.w = 0.f;
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return H_val(r,n);
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*/
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unsigned int i;
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float z = 0.f;
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for(i=0;i<nW;i++){
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float omega = 2.f * M_PI / w[i].y;
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float k = omega * omega / 9.81f;
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float beta = w[i].w * M_PI / 180.f;
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float l = p.x*cos(beta) + p.y*sin(beta);
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z -= w[i].x*omega * cos(k*l - omega*t + w[i].z)*exp(k*p.z);
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}
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return z;
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}
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/** Computes \$G_{ab}\$ and \$H_{ab}\$ in the case that \$a = b\$ \n
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* \$ G_{ab} = \frac{1}{4 \pi \vert \mathbf{r} \vert } \$
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* \$ H_{ab} = \frac{\mathbf{r}}{4 \pi \vert \mathbf{r} \vert^3} \cdot n_b - \frac{1}{2} \$
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* @param positions Array of points of the free surface
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* @param w Array of waves data (Amplitude,period,phase,heading)
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* @param normals Element normals
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* @param I x index of the point to compute.
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* @param J y index of the point to compute.
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* @param L Free surface length in the x direction.
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* @param B Free surface length in the y direction.
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* @param dx Distance between element centers in the x direction.
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* @param dy Distance between element centers in the x direction.
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||||||
* @param t Simulation time.
|
|
||||||
* @param nx Free surface points in the x direction.
|
|
||||||
* @param ny Free surface points in the y direction.
|
|
||||||
* @param nW Number of waves.
|
|
||||||
*/
|
|
||||||
float2 GH(__global float4* positions,
|
|
||||||
__global float4* w,
|
|
||||||
__global float4* normals,
|
|
||||||
unsigned int I, unsigned int J,
|
|
||||||
float L, float B,
|
|
||||||
float dx, float dy,
|
|
||||||
float t,
|
|
||||||
unsigned int nx,
|
|
||||||
unsigned int ny,
|
|
||||||
unsigned int nW)
|
|
||||||
{
|
|
||||||
__private float4 P[9];
|
|
||||||
__private float K[9];
|
|
||||||
unsigned int i,j;
|
|
||||||
float4 p = positions[I*ny + J];
|
|
||||||
float4 n = normals[I*ny + J];
|
|
||||||
float Dx = dx / _NG_;
|
|
||||||
float Dy = dy / _NG_;
|
|
||||||
for(i=0;i<3;i++){
|
|
||||||
for(j=0;j<3;j++){
|
|
||||||
P[i*3+j].x = p.x + (i-1)*dx;
|
|
||||||
P[i*3+j].y = p.y + (j-1)*dy;
|
|
||||||
if( (P[i*3+j].x > -0.5*L) &&
|
|
||||||
(P[i*3+j].x < 0.5*L) &&
|
|
||||||
(P[i*3+j].y > -0.5*B) &&
|
|
||||||
(P[i*3+j].y < 0.5*B))
|
|
||||||
P[i*3+j].z = positions[(I-1+i)*ny + (J-1+j)].z;
|
|
||||||
else
|
|
||||||
P[i*3+j].z = waves_z(w, P[i*3+j], t, nW);
|
|
||||||
P[i*3+j].w = 0.f;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
// Get SPline surface coeffs
|
|
||||||
K[0] = P[0].z; // k_{0}
|
|
||||||
K[1] = 4*P[3].z - P[6].z - 3*P[0].z; // k_{u}
|
|
||||||
K[2] = 4*P[1].z - P[2].z - 3*P[0].z; // k_{v}
|
|
||||||
K[3] = P[8].z - 4*P[7].z + 3*P[6].z +
|
|
||||||
3*P[2].z - 12*P[1].z + 9*P[0].z +
|
|
||||||
-4*P[5].z + 16*P[4].z - 12*P[3].z; // k_{uv}
|
|
||||||
K[4] = 2*P[6].z + 2*P[0].z - 4*P[3].z; // k_{uu}
|
|
||||||
K[5] = 2*P[2].z + 2*P[0].z - 4*P[1].z; // k_{vv}
|
|
||||||
K[6] = -2*P[8].z + 8*P[7].z - 6*P[6].z +
|
|
||||||
-2*P[2].z + 8*P[1].z - 6*P[0].z +
|
|
||||||
4*P[5].z - 16*P[4].z + 12*P[3].z; // k_{uuv}
|
|
||||||
K[7] = -2*P[8].z + 4*P[7].z - 2*P[6].z +
|
|
||||||
-6*P[2].z + 12*P[1].z - 6*P[0].z +
|
|
||||||
8*P[5].z - 16*P[4].z + 8*P[3].z; // k_{uuv}
|
|
||||||
K[8] = 4*P[8].z - 8*P[7].z + 4*P[6].z +
|
|
||||||
4*P[2].z - 8*P[1].z + 4*P[0].z +
|
|
||||||
-8*P[5].z + 16*P[4].z - 8*P[3].z; // k_{uuvv}
|
|
||||||
// Loop around the point p collecting the integral
|
|
||||||
float2 gh;
|
|
||||||
gh.x = 0.0f;
|
|
||||||
gh.y = -0.5f;
|
|
||||||
for(i=0;i<_NG_;i++){
|
|
||||||
for(j=0;j<_NG_;j++){
|
|
||||||
float4 p_a;
|
|
||||||
float u,v;
|
|
||||||
p_a.x = positions[I*ny + J].x - 0.5f*dx + (i+0.5f)*Dx;
|
|
||||||
p_a.y = positions[I*ny + J].y - 0.5f*dy + (j+0.5f)*Dy;
|
|
||||||
u = (p_a.x - P[0].x) / (P[6].x - P[0].x);
|
|
||||||
v = (p_a.y - P[0].y) / (P[2].y - P[0].y);
|
|
||||||
p_a.z = K[0] + K[1]*u + K[2]*v + K[3]*u*v +
|
|
||||||
K[4]*u*u + K[5]*v*v + K[6]*u*u*v +
|
|
||||||
K[7]*u*v*v + K[8]*u*u*v*v;
|
|
||||||
p_a.w = 1.f;
|
|
||||||
gh.x += G_val(p_a - p)*Dx*Dy;
|
|
||||||
// For some reason H is not well integrated
|
|
||||||
// gh.y += H_val(p_a - p, n)*Dx*Dy;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return gh;
|
|
||||||
}
|
|
||||||
|
|
||||||
/** Compute Linear system matrix. Desingularized sources must taken into account.
|
|
||||||
* @param A Linear system matrix.
|
|
||||||
* @param B Independent term for velocity potentials.
|
|
||||||
* @param positions Elements points.
|
|
||||||
* @param areas Elements area.
|
|
||||||
* @param normals Elements normals.
|
|
||||||
* @param p Velocity potentials.
|
|
||||||
* @param dp Acceleration potentials.
|
|
||||||
* @param waves Array of waves data (Amplitude,period,phase,heading)
|
|
||||||
* @param l Free surface length in the x direction.
|
|
||||||
* @param b Free surface length in the y direction.
|
|
||||||
* @param dx Distance between element centers in the x direction.
|
|
||||||
* @param dy Distance between element centers in the x direction.
|
|
||||||
* @param t Simulation time.
|
|
||||||
* @param nx Free surface points in the x direction.
|
|
||||||
* @param ny Free surface points in the y direction.
|
|
||||||
* @param nFS Number of points in the free surface.
|
|
||||||
* @param nB Number of points in the body (ignored yet, should be 0).
|
|
||||||
* @param n Total number of points.
|
|
||||||
* @param nSeax Number of repetitions of the free surface in the x direction.
|
|
||||||
* @param nSeay Number of repetitions of the free surface in the y direction.
|
|
||||||
* @param nW Number of waves.
|
|
||||||
*/
|
|
||||||
__kernel void matrixGen(__global float* A,
|
|
||||||
__global float* B,
|
|
||||||
__global float4* positions,
|
|
||||||
__global float* areas,
|
|
||||||
__global float4* normals,
|
|
||||||
__global float* p,
|
|
||||||
__global float* dp,
|
|
||||||
__global float4* waves,
|
|
||||||
float l,
|
|
||||||
float b,
|
|
||||||
float dx,
|
|
||||||
float dy,
|
|
||||||
float t,
|
|
||||||
unsigned int nx,
|
|
||||||
unsigned int ny,
|
|
||||||
unsigned int nFS,
|
|
||||||
unsigned int nB,
|
|
||||||
unsigned int n,
|
|
||||||
int nSeax,
|
|
||||||
int nSeay,
|
|
||||||
unsigned int nW)
|
|
||||||
{
|
|
||||||
// find position in global arrays
|
|
||||||
unsigned int i = get_global_id(0);
|
|
||||||
unsigned int j;
|
|
||||||
int I,J;
|
|
||||||
if(i >= n)
|
|
||||||
return;
|
|
||||||
// Get the point where we want to evaluate
|
|
||||||
float4 p_a = positions[i];
|
|
||||||
// Evaluate the row
|
|
||||||
B[i] = 0.f;
|
|
||||||
for(j=0;j<nFS;j++){
|
|
||||||
// Get G,H for this pair of points
|
|
||||||
float2 gh;
|
|
||||||
float4 p_b = positions[j];
|
|
||||||
float4 n_b = normals[j];
|
|
||||||
if(i == j){
|
|
||||||
gh = GH(positions,waves,normals,i/ny,i%ny,
|
|
||||||
l,b,dx,dy,t,nx,ny,nW);
|
|
||||||
}
|
|
||||||
else{
|
|
||||||
p_b = positions[j];
|
|
||||||
gh.x = G_val(p_b - p_a)*dx*dy;
|
|
||||||
gh.y = H_val(p_b - p_a, n_b)*dx*dy;
|
|
||||||
}
|
|
||||||
// In the free surface G goes to the linear system
|
|
||||||
// matrix while H goes to the B term
|
|
||||||
A[j + i*n] = -gh.x;
|
|
||||||
B[i] += gh.y * p[j];
|
|
||||||
// Compute also the terms of the virtual free surface
|
|
||||||
// extension.
|
|
||||||
for(I=-nSeax;I<=nSeax;I++){
|
|
||||||
for(J=-nSeay;J<=nSeay;J++){
|
|
||||||
if((!I) && (!J))
|
|
||||||
continue;
|
|
||||||
float4 p_c = p_b;
|
|
||||||
p_c.x += I*l;
|
|
||||||
p_c.y += J*b;
|
|
||||||
p_c.z = waves_z(waves, p_c, t, nW);
|
|
||||||
gh.x = G_val(p_c - p_a)*dx*dy;
|
|
||||||
gh.y = H_val(p_c - p_a, n_b)*dx*dy;
|
|
||||||
// In the extended free surface both terms goes to
|
|
||||||
// the B term
|
|
||||||
B[i] += gh.y*waves_phi(waves, p_c, t, nW) - gh.x*waves_gradphi(waves, p_c, t, nW);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
@ -1,94 +0,0 @@
|
||||||
/*
|
|
||||||
* Copyright (c) 2011, 2012 *
|
|
||||||
* Jose Luis Cercos Pita <jlcercos@gmail.com> *
|
|
||||||
* *
|
|
||||||
* This program is free software; you can redistribute it and/or modify *
|
|
||||||
* it under the terms of the GNU Lesser General Public License (LGPL) *
|
|
||||||
* as published by the Free Software Foundation; either version 2 of *
|
|
||||||
* the License, or (at your option) any later version. *
|
|
||||||
* for detail see the LICENCE text file. *
|
|
||||||
* *
|
|
||||||
* This program is distributed in the hope that it will be useful, *
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
|
||||||
* GNU Library General Public License for more details. *
|
|
||||||
* *
|
|
||||||
* You should have received a copy of the GNU Library General Public *
|
|
||||||
* License along with this program; if not, write to the Free Software *
|
|
||||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
|
|
||||||
* USA *
|
|
||||||
*/
|
|
||||||
|
|
||||||
/** Compute residuals of the solution stimator for a linear system.
|
|
||||||
* @param A Linear system matrix.
|
|
||||||
* @param B Linear system independent term.
|
|
||||||
* @param X Solution estimation.
|
|
||||||
* @param R Residuals.
|
|
||||||
* @param n Linear system dimension.
|
|
||||||
*/
|
|
||||||
__kernel void r(__global float* A,
|
|
||||||
__global float* B,
|
|
||||||
__global float* X,
|
|
||||||
__global float* R,
|
|
||||||
unsigned int n)
|
|
||||||
{
|
|
||||||
// find position in global arrays
|
|
||||||
unsigned int i = get_global_id(0);
|
|
||||||
unsigned int j;
|
|
||||||
if(i >= n)
|
|
||||||
return;
|
|
||||||
// Evaluate the row
|
|
||||||
R[i] = B[i];
|
|
||||||
for(j=0;j<n;j++){
|
|
||||||
R[i] -= A[j + i*n]*X[j];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/** Compute inner product between a matrix and a vector.
|
|
||||||
* @param A Matrix.
|
|
||||||
* @param X Vector.
|
|
||||||
* @param Y Result.
|
|
||||||
* @param n Linear system dimension.
|
|
||||||
*/
|
|
||||||
__kernel void dot_mat_vec(__global float* A,
|
|
||||||
__global float* X,
|
|
||||||
__global float* Y,
|
|
||||||
unsigned int n)
|
|
||||||
{
|
|
||||||
// find position in global arrays
|
|
||||||
unsigned int i = get_global_id(0);
|
|
||||||
unsigned int j;
|
|
||||||
if(i >= n)
|
|
||||||
return;
|
|
||||||
// Evaluate the row
|
|
||||||
Y[i] = 0.f;
|
|
||||||
for(j=0;j<n;j++){
|
|
||||||
Y[i] += A[j + i*n]*X[j];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/** Solve a linear system using Minimal residues iterative method.
|
|
||||||
* @param A Linear system matrix.
|
|
||||||
* @param r Residues vector.
|
|
||||||
* @param x0 Solution of the previous iteration.
|
|
||||||
* @param x Solution of the actual iteration.
|
|
||||||
* @param Ar_r dot(dot(A,r), r).
|
|
||||||
* @param Ar_Ar dot(dot(A,r), dot(A,r)).
|
|
||||||
* @param n Linear system dimension.
|
|
||||||
*/
|
|
||||||
__kernel void minres(__global float* A,
|
|
||||||
__global float* r,
|
|
||||||
__global float* x0,
|
|
||||||
__global float* x,
|
|
||||||
float Ar_r,
|
|
||||||
float Ar_Ar,
|
|
||||||
unsigned int n)
|
|
||||||
{
|
|
||||||
// find position in global arrays
|
|
||||||
unsigned int i = get_global_id(0);
|
|
||||||
if(i >= n)
|
|
||||||
return;
|
|
||||||
// Evaluate the row
|
|
||||||
x[i] = x0[i] + Ar_r / Ar_Ar * r[i];
|
|
||||||
}
|
|
||||||
|
|
||||||
Loading…
Reference in New Issue
Block a user