OpenBLAS

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Author	SHA1	Message	Date
Xianyi Zhang	57658a8c14	ref #62 . Added the user friendly message with USE_OPENMP=1. The users should use OMP_NUM_THREADS. When OpenBLAS is compiled with USE_OPENMP=1, it ignores OPENBLAS_NUM_THREADS and GOTO_NUM_THREADS flags.Therefore, you should use OMP_NUM_THREADS. Without setting OMP_NUM_THREADS, a process will use maximal number of threads on a computing node. Thus, if there are 2 processes on the computing node, the thread will contend against other threads on CPU cores. As a result, the application will hang.	14 years ago
Xianyi Zhang	066465af5b	Used the environment variable OPENBLAS_NUM_THREADS to set the number of threads in test.	15 years ago
Xianyi Zhang	342bbc3871	Import GotoBLAS2 1.13 BSD version codes.	15 years ago

Author

SHA1

Message

Date

Xianyi Zhang

57658a8c14

ref #62 . Added the user friendly message with USE_OPENMP=1. The users should use OMP_NUM_THREADS.

When OpenBLAS is compiled with USE_OPENMP=1, it ignores OPENBLAS_NUM_THREADS and GOTO_NUM_THREADS flags.Therefore, you should use OMP_NUM_THREADS.

Without setting OMP_NUM_THREADS, a process will use maximal number of threads on a computing node. Thus, if there are 2 processes on the computing node, the thread will contend against other threads on CPU cores. As a result, the application will hang.

14 years ago

Xianyi Zhang

066465af5b

Used the environment variable OPENBLAS_NUM_THREADS to set the number of threads in test.

15 years ago

Xianyi Zhang

342bbc3871

Import GotoBLAS2 1.13 BSD version codes.

15 years ago

3 Commits (727e6d83c05d0fba4f8fd9a04f84cf032eaaca6e)