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27 lines
654 B
CMake
27 lines
654 B
CMake
if(NOT DEFINED PROCESSOR_COUNT)
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# Unknown:
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set(PROCESSOR_COUNT 0)
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# Linux:
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set(cpuinfo_file "/proc/cpuinfo")
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if(EXISTS "${cpuinfo_file}")
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file(STRINGS "${cpuinfo_file}" procs REGEX "^processor.: [0-9]+$")
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list(LENGTH procs PROCESSOR_COUNT)
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endif()
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# Mac:
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if(APPLE)
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find_program(cmd_sys_pro "system_profiler")
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if(cmd_sys_pro)
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execute_process(COMMAND ${cmd_sys_pro} OUTPUT_VARIABLE info)
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string(REGEX REPLACE "^.*Total Number Of Cores: ([0-9]+).*$" "\\1"
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PROCESSOR_COUNT "${info}")
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endif()
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endif()
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# Windows:
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if(WIN32)
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set(PROCESSOR_COUNT "$ENV{NUMBER_OF_PROCESSORS}")
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endif()
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endif()
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