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| author | nihui <shuizhuyuanluo@126.com> | 2024-04-02 23:38:40 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-04-02 11:38:40 -0400 |
| commit | 31880df9947d58c160b691160c4714277be7c31e (patch) | |
| tree | 4dbb041aa35fcd8ef242d6b5ad2d56212e355a5f /openmp/runtime | |
| parent | c5bbdb64940d75e7702d1d450e77534d908fc9f1 (diff) | |
| download | llvm-31880df9947d58c160b691160c4714277be7c31e.zip llvm-31880df9947d58c160b691160c4714277be7c31e.tar.gz llvm-31880df9947d58c160b691160c4714277be7c31e.tar.bz2 | |
[OpenMP] get logical core count on modern apple platform (#87231)
`hw.logicalcpu` returns the available logical core count
Fix build error for watchOS
```
runtime/src/z_Linux_util.cpp:1821:8: error: 'host_info' is unavailable: not available on watchOS
rc = host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&info, &num);
^
/Applications/Xcode_15.2.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS10.2.sdk/usr/include/mach/mach_host.h:82:15: note: 'host_info' has been explicitly marked unavailable here
kern_return_t host_info
^
1 warning and 1 error generated.
make[2]: *** [runtime/src/CMakeFiles/omp.dir/z_Linux_util.cpp.o] Error 1
```
Diffstat (limited to 'openmp/runtime')
| -rw-r--r-- | openmp/runtime/src/z_Linux_util.cpp | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/openmp/runtime/src/z_Linux_util.cpp b/openmp/runtime/src/z_Linux_util.cpp index ee5e6e1..be47be0 100644 --- a/openmp/runtime/src/z_Linux_util.cpp +++ b/openmp/runtime/src/z_Linux_util.cpp @@ -1889,21 +1889,8 @@ static int __kmp_get_xproc(void) { #elif KMP_OS_DARWIN - // Bug C77011 High "OpenMP Threads and number of active cores". - - // Find the number of available CPUs. - kern_return_t rc; - host_basic_info_data_t info; - mach_msg_type_number_t num = HOST_BASIC_INFO_COUNT; - rc = host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&info, &num); - if (rc == 0 && num == HOST_BASIC_INFO_COUNT) { - // Cannot use KA_TRACE() here because this code works before trace support - // is initialized. - r = info.avail_cpus; - } else { - KMP_WARNING(CantGetNumAvailCPU); - KMP_INFORM(AssumedNumCPU); - } + size_t len = sizeof(r); + sysctlbyname("hw.logicalcpu", &r, &len, NULL, 0); #else |