snb / labench
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Tool to measure performance of linear algebra libraries, such as BLAS and LAPACK
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.gitignore | Tue Sep 08 03:58:39 -0700 2009 | |
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Makefile | Loading commit data...  |
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README.md | Wed Sep 09 09:33:55 -0700 2009 | |
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TODO | Thu Sep 10 05:23:31 -0700 2009 | |
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defs.h | ||
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main.c | Thu Sep 10 05:28:50 -0700 2009 | |
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matrix.c | Thu Sep 10 05:23:31 -0700 2009 | |
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matrix.h | ||
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timing.c | Thu Sep 10 05:22:56 -0700 2009 | |
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timing.h |
This is labench, an oh-so-catchy name for linear algebra benchmarking. To build the tests, just run make, or gmake on systems where the make command is not GNU make. You will probably have to modify the Makefile to choose which libraries you want to test. After compiling, you will end up with a number of binaries for testing double and single precision versions of the test routines using each of the library versions specified in the Makefile. So far I have tested labench only on Mac OS X 10.6 and Ubuntu Linux 9.04. It might work on other systems, but no promises.
This project was started because I was interested in comparing the performance of different implementations of common linear algebra libraries such as BLAS and LAPACK. Right now it is possible to measure the CPU and wall clock time of multiplying dense general matrices together with the sgemm and dgemm routines from level 3 BLAS, and the speed of finding eigenvalues and eigenvectors of a dense general matrix using sgeev and dgeev LAPACK routines.
Another tool for benchmarking numerical computing performance is HPCC, the High Performance Computing Challenge. HPCC even includes a dgemm test. My goal with labench was to focus specifically on making it easy to compare performance of different implementations of the same libraries, so one can decide which library is the best choice to use on a given machine. I also hope to make it very easy to extend labench to support performance testing of other BLAS and LAPACK functions, and possibly also other numerical libraries.
labench is fairly basic right now, but take a look at the TODO file to see what sort of things are planned for its future.
-- Nick Barkas snb@FreeBSD.org
