Add linear algebra benchmark that uses flmatrix.

[soegaard]

No description provided.

[jcoo092]

Hmmm, for some reason I get an error when I try to run your program 😕

ffi-obj: couldn't get "cblas_scopy" from "libblas.so.3" (/lib64/libblas.so.3: undefined symbol: cblas_scopy)
  context...:
   /usr/local/share/racket/collects/ffi/../racket/private/more-scheme.rkt:261:28
   /usr/local/share/racket/collects/ffi/unsafe.rkt:249:2: get-ffi-obj*
   '#%embedded:flmatrix:: [running body]
   temp35_0
   for-loop
   run-module-instance!
   for-loop
   [repeats 1 more time]
   run-module-instance!
   perform-require!
   top-level: [running body]
   eval-one-top
   loop
   [repeats 1 more time]

I have checked and ensured that I have all of BLAS, LAPACK and ATLAS installed, as well as their -devel versions. I have also ensured that I have a copy of your flmatrix.rkt file in the local directory. It builds fine with raco make, but I hit this error at runtime, whether I use the racket -tm style, or pre-build with raco exe.

I see in your flmatrix file that you have confirmed it works on Debian. Do you know which BLAS package you installed there? I'm on Fedora 31 (I should really add that to the README...), but I can't imagine that Debian would have something and I couldn't possibly get it on Fedora.

[Metaxal]

Here's what I have installed

$ locate libblas
/etc/alternatives/libblas.a-x86_64-linux-gnu
/etc/alternatives/libblas.so-x86_64-linux-gnu
/etc/alternatives/libblas.so.3-x86_64-linux-gnu
/usr/lib/x86_64-linux-gnu/libblas.a
/usr/lib/x86_64-linux-gnu/libblas.so
/usr/lib/x86_64-linux-gnu/libblas.so.3
/usr/lib/x86_64-linux-gnu/atlas/libblas.so.3
/usr/lib/x86_64-linux-gnu/atlas/libblas.so.3.10.3
/usr/lib/x86_64-linux-gnu/blas/libblas.a
/usr/lib/x86_64-linux-gnu/blas/libblas.so
/usr/lib/x86_64-linux-gnu/blas/libblas.so.3
/usr/lib/x86_64-linux-gnu/blas/libblas.so.3.9.0
/usr/share/doc/libblas-common
/usr/share/doc/libblas-dev
/usr/share/doc/libblas3
/usr/share/doc/libblas-common/changelog.Debian.gz
/usr/share/doc/libblas-common/copyright
/usr/share/doc/libblas-dev/README.if-you-look-for-libcblas.so.3
/usr/share/doc/libblas-dev/changelog.Debian.gz
/usr/share/doc/libblas-dev/copyright
/usr/share/doc/libblas3/changelog.Debian.gz
/usr/share/doc/libblas3/copyright
/usr/share/lintian/overrides/libblas3
/var/lib/dpkg/alternatives/libblas.so-x86_64-linux-gnu
/var/lib/dpkg/alternatives/libblas.so.3-x86_64-linux-gnu
/var/lib/dpkg/info/libblas-common.list
/var/lib/dpkg/info/libblas-common.md5sums
/var/lib/dpkg/info/libblas-dev:amd64.list
/var/lib/dpkg/info/libblas-dev:amd64.md5sums
/var/lib/dpkg/info/libblas-dev:amd64.mtree
/var/lib/dpkg/info/libblas-dev:amd64.postinst
/var/lib/dpkg/info/libblas-dev:amd64.preinst
/var/lib/dpkg/info/libblas-dev:amd64.prerm
/var/lib/dpkg/info/libblas3:amd64.list
/var/lib/dpkg/info/libblas3:amd64.md5sums
/var/lib/dpkg/info/libblas3:amd64.mtree
/var/lib/dpkg/info/libblas3:amd64.postinst
/var/lib/dpkg/info/libblas3:amd64.preinst
/var/lib/dpkg/info/libblas3:amd64.prerm
/var/lib/dpkg/info/libblas3:amd64.shlibs
/var/lib/dpkg/info/libblas3:amd64.triggers

$ locate liblapack
/etc/alternatives/liblapack.a-x86_64-linux-gnu
/etc/alternatives/liblapack.so-x86_64-linux-gnu
/etc/alternatives/liblapack.so.3-x86_64-linux-gnu
/usr/lib/x86_64-linux-gnu/liblapack.a
/usr/lib/x86_64-linux-gnu/liblapack.so
/usr/lib/x86_64-linux-gnu/liblapack.so.3
/usr/lib/x86_64-linux-gnu/liblapack_atlas.so.3
/usr/lib/x86_64-linux-gnu/liblapack_atlas.so.3.10.3
/usr/lib/x86_64-linux-gnu/liblapack_pic.a
/usr/lib/x86_64-linux-gnu/atlas/liblapack.so.3
/usr/lib/x86_64-linux-gnu/atlas/liblapack.so.3.10.3
/usr/lib/x86_64-linux-gnu/lapack/liblapack.a
/usr/lib/x86_64-linux-gnu/lapack/liblapack.so
/usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3
/usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3.9.0
/usr/share/doc/liblapack-dev
/usr/share/doc/liblapack3
/usr/share/doc/liblapack-dev/changelog.Debian.gz
/usr/share/doc/liblapack-dev/copyright
/usr/share/doc/liblapack3/changelog.Debian.gz
/usr/share/doc/liblapack3/copyright
/usr/share/lintian/overrides/liblapack3
/var/lib/dpkg/alternatives/liblapack.so-x86_64-linux-gnu
/var/lib/dpkg/alternatives/liblapack.so.3-x86_64-linux-gnu
/var/lib/dpkg/info/liblapack-dev:amd64.list
/var/lib/dpkg/info/liblapack-dev:amd64.md5sums
/var/lib/dpkg/info/liblapack-dev:amd64.mtree
/var/lib/dpkg/info/liblapack-dev:amd64.postinst
/var/lib/dpkg/info/liblapack-dev:amd64.preinst
/var/lib/dpkg/info/liblapack-dev:amd64.prerm
/var/lib/dpkg/info/liblapack3:amd64.list
/var/lib/dpkg/info/liblapack3:amd64.md5sums
/var/lib/dpkg/info/liblapack3:amd64.mtree
/var/lib/dpkg/info/liblapack3:amd64.postinst
/var/lib/dpkg/info/liblapack3:amd64.preinst
/var/lib/dpkg/info/liblapack3:amd64.prerm
/var/lib/dpkg/info/liblapack3:amd64.shlibs
/var/lib/dpkg/info/liblapack3:amd64.triggers

[jcoo092]

As a note for future reference, we eventually managed to find a solution: It turned out that on my system there are both libblas.so and libcblas.so files. Changing the referenced file in flmatrix.rkt from libblas.so to libcblas.so got everything working. Apparently, on Debian, they folded BLAS and CBLAS into one so simply installing BLAS works, whereas it looks like on Fedora/RHEL they haven't combined them so far - at least not with Fedora 31.