Gentoo Archives: gentoo-amd64

From: Mark Knecht <markknecht@×××××.com>
To: gentoo-amd64@l.g.o
Subject: Re: [gentoo-amd64] Possible Math Problem - Request For Verification
Date: Sun, 26 Jun 2011 00:24:05
Message-Id: BANLkTinS9YdxfKM-aeUu_X8qVmSJ9bZ+iQ@mail.gmail.com
In Reply to: Re: [gentoo-amd64] Possible Math Problem - Request For Verification by Marc Joliet
On Sat, Jun 25, 2011 at 4:54 PM, Marc Joliet <marcec@×××.de> wrote:
> Am Sat, 25 Jun 2011 13:41:11 -0400 > schrieb Frank Peters <frank.peters@×××××××.net>: > >> Hello, >> > [background information] > > Huh, I was unaware that GNU (since they're the authors of GCC/GLIBC) ever had > problems in this area. Since I use my machine for numerical tasks, too, I was > interested in seeing whether I would see the same problem. > >> The code will take several minutes to compile, execute, and complete.  While >> the test is running it will spit out its progress to stdout.  Upon completion >> a brief summary is given: >> >> UCBFAIL indicates problems! >> /tmp/fp-test-results/ccos_DP.output: ucbtest UCBFAIL in COS(X) at line 444 for generic >> /tmp/fp-test-results/clib_DP.output: ucbtest UCBFAIL in cabsd at line 701 for double >> /tmp/fp-test-results/clib_DP.output: ucbtest UCBFAIL in powd at line 701 for double >> /tmp/fp-test-results/clib_DP.output:UCBFAIL clib_DP.output , 25 out of 25 tests completed >> /tmp/fp-test-results/csin_DP.output: ucbtest UCBFAIL in SIN(X) at line 444 for generic >> >> only 11 out of 14 show UCBPASS! > > I ran the tests without any modifications to ucbREADME/linux.sh and don't get > the cabsd failure: > >    UCBFAIL indicates problems! >    /tmp/fp-test-results/ccos_DP.output: ucbtest UCBFAIL in COS(X) at line 444 for generic >    /tmp/fp-test-results/clib_DP.output: ucbtest UCBFAIL in powd at line 701 for double >    /tmp/fp-test-results/clib_DP.output:UCBFAIL clib_DP.output , 25 out of 25 tests completed >    /tmp/fp-test-results/csin_DP.output: ucbtest UCBFAIL in SIN(X) at line 444 for generic > >    only 11 out of 14 show UCBPASS! >
Indeed, it was even manageable for a non-programmer like me. Like Marc's results I do not see the cabsd failure. This machine is an Intel i7-980x Extreme running Gentoo 64-bit mostly stable. UCBFAIL indicates problems! /tmp/fp-test-results/ccos_DP.output: ucbtest UCBFAIL in COS(X) at line 444 for generic /tmp/fp-test-results/clib_DP.output: ucbtest UCBFAIL in powd at line 701 for double /tmp/fp-test-results/clib_DP.output:UCBFAIL clib_DP.output , 25 out of 25 tests completed /tmp/fp-test-results/csin_DP.output: ucbtest UCBFAIL in SIN(X) at line 444 for generic HTH, Mark

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Subject Author
Re: [gentoo-amd64] Possible Math Problem - Request For Verification Frank Peters <frank.peters@×××××××.net>