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FEM: Add multi-thread calcs

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Slightly modified code by kwahoo
This commit is contained in:
Przemo Firszt 2015-06-29 21:42:07 +01:00 committed by wmayer
parent b45190fb4d
commit ff742beb97
1 changed files with 8 additions and 1 deletions
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9
src/Mod/Fem/FemTools.py
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@ -134,15 +134,22 @@ class FemTools(QtCore.QRunnable, QtCore.QObject):
raise
def start_ccx(self):
import multiprocessing
import os
import subprocess
if self.base_name != "":
ont_backup = os.environ.get('OMP_NUM_THREADS')
if not ont_backup:
ont_backup = ""
_env = os.putenv('OMP_NUM_THREADS', str(multiprocessing.cpu_count()))
# change cwd because ccx may crash if directory has no write permission
# there is also a limit of the length of file names so jump to the document directory
cwd = QtCore.QDir.currentPath()
f = QtCore.QFileInfo(self.base_name)
QtCore.QDir.setCurrent(f.path())
p = subprocess.Popen([self.ccx_binary, "-i ", f.baseName()], shell=False)
p = subprocess.Popen([self.ccx_binary, "-i ", f.baseName()], shell=False, env=_env)
self.ccx_stdout, self.ccx_stderr = p.communicate()
os.putenv('OMP_NUM_THREADS', ont_backup)
QtCore.QDir.setCurrent(cwd)
return p.returncode
return -1