Re: [atlas-devel] 3.11.15: complex AMMM! a little help?

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Clint,

Here is the info for my Corei7:

   ARCH = Corei164SSE3
   ADdir  = $(SRCdir)/CONFIG/ARCHS
   ARCHDEFS = -DATL_OS_Linux -DATL_ARCH_Corei1 -DATL_CPUMHZ=2800 -DATL_SSE3 -DATL_SSE2 -DATL_SSE1 -DATL_USE64BITS -DATL_GAS_x8664
   CDEFS = $(L2SIZE) $(INCLUDES) $(F2CDEFS) $(ARCHDEFS) -m64 -DATL_DYLIBS -DATL_FULL_LAPACK -DATL_NCPU=$(NPROC)

make check failed:
/home/melrobin/ATLAS/build/lib/libatlas.a(ATL_sgemm.o): In function `ATL_sgemm':
ATL_gemm.c:(.text+0xfc): undefined reference to `ATL_sammm'
ATL_gemm.c:(.text+0x3fc): undefined reference to `ATL_sammm'
ATL_gemm.c:(.text+0x6fe): undefined reference to `ATL_sammm'
ATL_gemm.c:(.text+0xb71): undefined reference to `ATL_sammm'
/home/melrobin/ATLAS/build/lib/libatlas.a(ATL_sgemmNN.o): In function `ATL_sgemmNN':
ATL_gemmXX.c:(.text+0x9e): undefined reference to `ATL_sammm'
/home/melrobin/ATLAS/build/lib/libatlas.a(ATL_sgemmNT.o):ATL_gemmXX.c:(.text+0x9e): more undefined references to `ATL_sammm' follow
collect2: error: ld returned 1 exit status
make[3]: *** [xsinvtst] Error 1
make[3]: Leaving directory `/home/melrobin/ATLAS/build/bin'
make[2]: *** [sanity_test] Error 2
make[2]: Leaving directory `/home/melrobin/ATLAS/build/bin'
make[1]: *** [sanity_test] Error 2
make[1]: Leaving directory `/home/melrobin/ATLAS/build'
make: *** [test] Error 2

[melrobin@scorpion bin]$         ./xdmmtst_amm2 -N 2000 8000 2000 ; ./xzmmtst_amm2 -N 2000 8000

TEST  TA  TB    M    N    K  alpha   beta    Time  Mflop  SpUp  PASS
====  ==  ==  ===  ===  ===  =====  =====  ======  =====  ====  ====

   1   N   N 2000 2000 2000    1.0    1.0    1.73 9248.6  1.00   ---
   1   N   N 2000 2000 2000    1.0    1.0    1.54 10409.9  1.13   YES
   2   N   N 4000 4000 4000    1.0    1.0   13.86 9235.9  1.00   ---
   2   N   N 4000 4000 4000    1.0    1.0   12.21 10484.1  1.14   YES
   3   N   N 6000 6000 6000    1.0    1.0   46.71 9249.0  1.00   ---
   3   N   N 6000 6000 6000    1.0    1.0   41.02 10530.7  1.14   YES
   4   N   N 8000 8000 8000    1.0    1.0  110.68 9251.6  1.00   ---
   4   N   N 8000 8000 8000    1.0    1.0   97.18 10536.8  1.14   YES

The make seems to have failed on the rest of the tests.

________________________________________
From: R. Clint Whaley <rcw...@ls...>
Sent: Saturday, October 26, 2013 8:33 PM
To: List for developer discussion, NOT SUPPORT.
Subject: [atlas-devel] 3.11.15: complex AMMM! a little help?

Guys,

By not leaving the keyboard or reading e-mail for a week, I have finally
been able to extend the new GEMM tuning framework to all types and
precisions.  This should result in substantial speedups for complex
arithmetic on most machines.

This is a big milestone, and means that once I've added some support for
things like low-memory operation, I can look at deprecating the old
block-major tuning framework.

In my present framework, I just reuse the real kernels for complex, so
this release shouldn't add to the install time over 3.11.14, even though
it is optimizing the complex types along with the real.  It should be
the case that on some machines, using the largest real kernels
overwhelms the cache when used for complex, and so I hope to later add
some tuning that looks at decreasing NB when using the real kernels.

However, it would be handy if I knew of a machine where this happened,
and on my present machine the complex without this is outstanding
(beating the real).

So, I would like to ask for you guys's help.  I'd like anybody who
installs 3.11.15 to post the following as a reply to this message:
    (1) Post your ARCH  & ARCHDEFS macros from Make.inc
    (2) indicate whether "make check" "make ptcheck" succeed
    (3) Assuming they do, post the results of:
        cd BLDdir/bin
        make xdmmtst_amm2 xsmmtst_amm2 xcmmtst_amm2 xzmmtst_amm2
        ./xdmmtst_amm2 -N 2000 8000 2000 ; ./xzmmtst_amm2 -N 2000 8000
2000 ; ./xsmmtst_amm2 -N 2000 8000 2000 ; ./xcmmtst_amm2 -N 2000 8000 2000

I'm looking for three things here: (1) platforms where the new framework
doesn't work, (2) architectures where the new access-major framework
isn't performing as well as the old block-major, and (3)places where the
complex performance is worse than the real.

I'm probably going to be busy on other stuff for a while, but anything
folks post will help me target my efforts when I get time to return.

You may want to reduce the max problem size (8000) if you have a slow
machine, or one with a small amount of memory.  I have special cases for
very large problems, cases with degenerate dimension (eg., N=1, or K=1),
and rank-K update.  Other matrix shapes (eg., inner product) may benefit
from further tuning, which is why I want to initially scope asymptotic
square.

If you have a particular machine you use a lot, bring it to my
attention.  Particularly old machines may be slower under the new system
due to inadequate kernel support, and if I don't know about a
performance shortfall on a particular platform, I can't put it on the
"improve it" list.

If you use non-square matrix shapes and want to post data on those as
well, please do.  It might effect which special cases I scope next.

I will post the results of the install on my home machine as a reply to
this e-mail.

Cheers,
Clint

ATLAS 3.11.15 released 10/26/13, highlights of changes from 3.11.14:
    * Got access-major framework working for complex types!
    * Rewrote ATL_ammm_rkK for bug fixes and clarity
    * Got complex m-vectorized access-major copy routines working
    * Got complex k-vectorized access-major copy routines working
    * Added support for recognizing some haswell chips sent in by:
        https://sourceforge.net/p/math-atlas/support-requests/913/

--
**********************************************************************
** R. Clint Whaley, PhD * Assoc Prof, LSU * www.csc.lsu.edu/~whaley **
**********************************************************************

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