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Re: Octave 3.6.0 on Windows XP plot fails.


From: Xianyi Zhang
Subject: Re: Octave 3.6.0 on Windows XP plot fails.
Date: Sat, 25 Feb 2012 14:34:57 +0800

Hi Nitzan, 

If you built OpenBLAS with 2 threads, it would only start 2 threads on multicore processors.

OpenBLAS can detect the number of cores on runtime. 
Thus, you can build OpenBLAS with a larger number (NUM_THREADS = xx in Makefile.rule), e.g. 12 , 16 or 24.

Thanks

Xianyi

2012/2/22 nitnit <address@hidden>

Tatsuro MATSUOKA-2 wrote
>
> I have tested full test on the development branch source (changeset
> 14388:b5b49f400f9b) using the latest OpenBLAS (alpha2.5 9dcea60).
> (Octave and related dependency was linked with Reference BLAS. The
> libblas.dll is replaced with that generated OpenBLAS.)
>
> The OpenBLAS gives only one additional failure (Test in svds.m) for MinGW
> build.
>

On my core i3-540 (NEHALEM), "full make check -i" with Octave-3.6.1-rc0, I
am getting the same results for both:

a. Tatsuro's ATLAS-3.9.19 based libblas.dll
and for
b. openblas r0.1alpha2.5 (fda39c6) compiled for dynamic-arch, 2 threads.

The results are:

 src\data.cc ............................................ PASS  796/798
FAIL 2
 src\mappers.cc ......................................... PASS  358/359
FAIL 1
 test_system.m ........................................... PASS   84/85
FAIL 1

Summary:

 PASS  10146
 FAIL      4

Another issue which is probably not related to libblas is that for
octave-3.6.1-rc0 (compiled by me with Tatsuro's libs, with both libblas) and
also for octave-3.6.0 (built by Tatsuro) I am also getting some errors on
exit:

error: Permission denied
error: ignoring octave_execution_exception while preparing to exit

Nitzan


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