Difference between revisions of "Blas Libraries"
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= Introduction = | = Introduction = | ||
| − | The key to speeding up and optimising a cluster often comes down to its BLAS libraries, so here is a review of what's been | + | The key to speeding up and optimising a cluster often comes down to its BLAS libraries, so here is a review of what's been done on the marvin cluster |
= ATLAS = | = ATLAS = | ||
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= OpenBLAS = | = OpenBLAS = | ||
| − | Manual compilation is quite straightforward. | + | Manual compilation is quite straightforward, although very verbose so that the 10k lines of GNU screen's history is quickly eaten up. |
| + | |||
| + | make | ||
| + | make install PREFIX=/custom/install/path | ||
| + | |||
| + | It is possible to search out th eprecise CPU setting to use and then specify it, but lacking time, no such setting was given and here is the end of the compilation output. | ||
cblas_zhpr2 PASSED THE COMPUTATIONAL TESTS ( 577 CALLS) | cblas_zhpr2 PASSED THE COMPUTATIONAL TESTS ( 577 CALLS) | ||
| − | + | ||
END OF TESTS | END OF TESTS | ||
make[1]: Leaving directory `/shelf/scratch/ramon/swmake/OpenBLAS-0.2.19/ctest' | make[1]: Leaving directory `/shelf/scratch/ramon/swmake/OpenBLAS-0.2.19/ctest' | ||
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To install the library, you can run "make PREFIX=/path/to/your/installation install" . | To install the library, you can run "make PREFIX=/path/to/your/installation install" . | ||
| + | |||
| + | Note how tests were already run. | ||
| + | |||
| + | = Linking an R installation to optimised BLAS = | ||
Latest revision as of 14:43, 6 September 2016
Contents
Introduction
The key to speeding up and optimising a cluster often comes down to its BLAS libraries, so here is a review of what's been done on the marvin cluster
ATLAS
yum install
This has been done on marvin and all the nodes. It is available in two varieties: normal atlas and then atlas-sse3.
hand compilation
OpenBLAS
Manual compilation is quite straightforward, although very verbose so that the 10k lines of GNU screen's history is quickly eaten up.
make make install PREFIX=/custom/install/path
It is possible to search out th eprecise CPU setting to use and then specify it, but lacking time, no such setting was given and here is the end of the compilation output.
cblas_zhpr2 PASSED THE COMPUTATIONAL TESTS ( 577 CALLS)
END OF TESTS
make[1]: Leaving directory `/shelf/scratch/ramon/swmake/OpenBLAS-0.2.19/ctest'
make[1]: Entering directory `/shelf/scratch/ramon/swmake/OpenBLAS-0.2.19/exports'
perl ./gensymbol linktest x86_64 _ 0 0 0 0 0 0 "" "" 1 > linktest.c
gcc -O2 -DMAX_STACK_ALLOC=2048 -Wall -m64 -DF_INTERFACE_GFORT -fPIC -DSMP_SERVER -DNO_WARMUP -DMAX_CPU_NUMBER=32 -DASMNAME= -DASMFNAME=_ -DNAME=_ - DCNAME= -DCHAR_NAME=\"_\" -DCHAR_CNAME=\"\" -DNO_AFFINITY -I.. -shared -o ../libopenblas_piledriverp-r0.2.19.so \
-Wl,--whole-archive ../libopenblas_piledriverp-r0.2.19.a -Wl,--no-whole-archive \
-Wl,-soname,libopenblas.so.0 -lm -lpthread -lgfortran -lm -lpthread -lgfortran
gcc -O2 -DMAX_STACK_ALLOC=2048 -Wall -m64 -DF_INTERFACE_GFORT -fPIC -DSMP_SERVER -DNO_WARMUP -DMAX_CPU_NUMBER=32 -DASMNAME= -DASMFNAME=_ -DNAME=_ - DCNAME= -DCHAR_NAME=\"_\" -DCHAR_CNAME=\"\" -DNO_AFFINITY -I.. -w -o linktest linktest.c ../libopenblas_piledriverp-r0.2.19.so - L/usr/lib/gcc/x86_64-redhat-linux/4.4.7 -L/usr/lib/gcc/x86_64-redhat-linux/4.4.7 -L/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../.. -lgfortran -lm -lgfortran -lm -lc && echo OK.
OK.
rm -f linktest
make[1]: Leaving directory `/shelf/scratch/ramon/swmake/OpenBLAS-0.2.19/exports'
OpenBLAS build complete. (BLAS CBLAS LAPACK LAPACKE)
OS ... Linux
Architecture ... x86_64
BINARY ... 64bit
C compiler ... GCC (command line : gcc)
Fortran compiler ... GFORTRAN (command line : gfortran)
Library Name ... libopenblas_piledriverp-r0.2.19.a (Multi threaded; Max num-threads is 32)
To install the library, you can run "make PREFIX=/path/to/your/installation install" .
Note how tests were already run.
