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Re: Tester for openblas needed
- From: Marco Atzeri <marco dot atzeri at gmail dot com>
- To: cygwin at cygwin dot com
- Date: Tue, 21 Oct 2014 20:03:27 +0200
- Subject: Re: Tester for openblas needed
- Authentication-results: sourceware.org; auth=none
- References: <54450C0A dot 6050705 at gmail dot com> <BAY169-DS3454FE83B442F8A23182EBA7970 at phx dot gbl> <54451D4C dot 5080604 at gmail dot com> <BAY169-DS41999173A807A98C0210C7A7970 at phx dot gbl> <54458524 dot 8010603 at gmail dot com> <BAY169-DS201BCE4DCECE478E49F36BA7970 at phx dot gbl> <5445F384 dot 705 at gmail dot com> <544649E9 dot 80808 at gmail dot com> <87iojdpdev dot fsf at Rainer dot invalid>
On 10/21/2014 6:59 PM, Achim Gratz wrote:
Marco Atzeri writes:
Use "make NUM_THREADS=n " to support n threads. "
So how many THREADS would you like to see ?
It should determine the number of cores at runtime as well as the level
of SSE/AVX support: i686 starts with the PentiumPro, which didn't have
SSE. Fixing this at compile time is nice for local builds, but no good
feel free to require the feature upstream.
Building with NUM_THREADS=n should provide in the mean time
the maximum available.
The variable OPENBLAS_NUM_THREADS=m should allow to less than the
building rev -2 with NUM_THREADS=16
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