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benchmark more blas/lapack functions #11
Description
Currently we benchmark:
BLAS level 1
- ddot
- ?nrm2
- ?axpy
BLAS level 3
- ?gemm
- ?syrk
LAPACK:
- ?gesv (
linalg.solve) - ?gesdd (
linalg.svd) - ?syev (
linalg.eigh)
@martin-frbg suggested it'd be useful to add
- ?gemv
- ?gbmv
for the banded matrix-vector multiply, what is more interesting to scale: matrix size or the number of bands?
- cdotc -- complex-valued BLAS level 1
Activity
martin-frbg commentedon Jun 26, 2024
good question - maybe matrix size for now to keep it simple, although number of bands would also be interesting. GBMV is a curious case where the implementation is unchanged from the original GotoBLAS and may not have been evaluated for (multithreaded) performance at all.
ev-br commentedon Jun 27, 2024
OK, gbmv benchmarks now run for a standard range of sizes from 100 to 1000 and kl=1, 2, 3 (kl=ku, so it's 3, 5, and 7 bands). Web display is at http://www.openmathlib.org/BLAS-Benchmarks/#benchmarks.gbmv.time_gbmv
and raw data is in the usual places from GH actions, https://github.com/OpenMathLib/BLAS-Benchmarks/actions/runs/9693385959/job/26748720100 for the graviton run etc.