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Commit 126b4b76 authored by Davis King's avatar Davis King
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merged

parents c96cef9c 54723def
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Showing with 3 additions and 4 deletions
setup.py
View file @ 126b4b76
...@@ -137,7 +137,7 @@ class CMakeBuild(build_ext): ...@@ -137,7 +137,7 @@ class CMakeBuild(build_ext):
else: else:
cmake_args += ['-DCMAKE_BUILD_TYPE=' + cfg] cmake_args += ['-DCMAKE_BUILD_TYPE=' + cfg]
# Do a parallel build # Do a parallel build
build_args += ['--', '-j'+str(num_available_cpu_cores(4))] build_args += ['--', '-j'+str(num_available_cpu_cores(2))]
build_folder = os.path.abspath(self.build_temp) build_folder = os.path.abspath(self.build_temp)
...@@ -162,9 +162,8 @@ def num_available_cpu_cores(ram_per_build_process_in_gb): ...@@ -162,9 +162,8 @@ def num_available_cpu_cores(ram_per_build_process_in_gb):
try: try:
mem_bytes = os.sysconf('SC_PAGE_SIZE') * os.sysconf('SC_PHYS_PAGES') mem_bytes = os.sysconf('SC_PAGE_SIZE') * os.sysconf('SC_PHYS_PAGES')
mem_gib = mem_bytes/(1024.**3) mem_gib = mem_bytes/(1024.**3)
# Assume hyperthreading so divide by 2 num_cores = multiprocessing.cpu_count()
num_cores = int(ceil(multiprocessing.cpu_count()/2.0)) # make sure we have enough ram for each build process.
# Require 4gb of ram per build thread.
mem_cores = int(floor(mem_gib/float(ram_per_build_process_in_gb)+0.5)); mem_cores = int(floor(mem_gib/float(ram_per_build_process_in_gb)+0.5));
# We are limited either by RAM or CPU cores. So pick the limiting amount # We are limited either by RAM or CPU cores. So pick the limiting amount
# and return that. # and return that.
......
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