Your message dated Fri, 09 Jul 2010 11:16:44 +0200
with message-id <[email protected]>
and subject line Re: Bug#580335: Please compile multithreaded ATLAS libraries
has caused the Debian Bug report #580335,
regarding Please compile multithreaded ATLAS libraries
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)
--
580335: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=580335
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: atlas
Version: 3.8.3-21
Severity: wishlist
Would it be possible to build also threaded version of atlas libraries?
Current libraries seem to be single-threaded. In the build process for
atlas this is achieved by
make ptshared
in addition to
make shared
--- End Message ---
--- Begin Message ---
Hello Ryo,
> I have been able to link my program with threaded ATLAS successfully as:
>
> $ gcc test.c -L/usr/lib/atlas-corei7sse3 -lptf77blas -latlas -lgfortran
>
> However, I cannot get any speed gain on our 8-core with hyperthreading
> machine.
Yes, and I guess my answer will disappoint you.
To allow your 8 cores to be used, you must rebuild Atlas (fakeroot
debian/rules custom).
Unlike the MKL, the number of thread is static:
http://math-atlas.sourceforge.net/faq.html#tnum
Sylvestre
--- End Message ---
