| Title: | Control the Number of Threads on 'BLAS' |
|---|---|
| Description: | Control the number of threads on 'BLAS' (Aka 'GotoBLAS', 'OpenBLAS', 'ACML', 'BLIS' and 'MKL'). And possible to control the number of threads in 'OpenMP'. Get a number of logical cores and physical cores if feasible. |
| Authors: | Junji NAKANO <[email protected]> and Ei-ji Nakama <[email protected]> |
| Maintainer: | Ei-ji Nakama <[email protected]> |
| License: | AGPL-3 |
| Version: | 0.23-42 |
| Built: | 2024-10-31 21:23:57 UTC |
| Source: | CRAN |
Control the number of threads on 'BLAS' (Aka 'GotoBLAS', 'ACML' and 'MKL').
If you build R directly on Windows and the BLAS file name is not 'Rblas.dll', you can give it as 'options ("RhpcBLASctl.win.Rblas.name" = "boofoo.dll")'.
openmp-related functions only work at build-time instructions. Omp_get * now returns NA_Integer if R was not built with openmp instructions. NOTE: if R itself is built without OpenMP instructions and BLAS thread is used with OpenMP, this package will not work...XD
get_num_cores() get_num_procs() blas_get_num_procs() blas_set_num_threads(threads) omp_get_num_procs() omp_get_max_threads() omp_set_num_threads(threads)get_num_cores() get_num_procs() blas_get_num_procs() blas_set_num_threads(threads) omp_get_num_procs() omp_get_max_threads() omp_set_num_threads(threads)
threads |
Number of threads |
https://prs.ism.ac.jp/~nakama/Rhpc/
get_num_cores |
Number of CPU physical processor. NOTE:Returns 1L if unknown |
get_num_procs |
Number of CPU logical processor. NOTE:Returns 1L if unknown |
blas_get_num_procs |
Number of available cores for the optimized BLAS. NOTE:Returns 1L if unknown |
omp_get_num_procs |
Result from OpenMP's omp_get_num_procs function. NOTE Returns NA_integer_ if unknown |
omp_get_max_threads |
Result from OpenMP's omp_get_max_threads function. NOTE Returns NA_integer_ if unknown |
Junji NAKANO <[email protected]> and Ei-ji Nakama<[email protected]> Maintainer: Ei-ji Nakama <[email protected]>
get_num_cores() get_num_procs() blas_get_num_procs() blas_set_num_threads(2) omp_get_num_procs() omp_get_max_threads() omp_set_num_threads(2)get_num_cores() get_num_procs() blas_get_num_procs() blas_set_num_threads(2) omp_get_num_procs() omp_get_max_threads() omp_set_num_threads(2)