On Tue, 29 Jul 2008, Jeff Squyres wrote:
On Jul 29, 2008, at 6:52 AM, Mark Dixon wrote:
FWIW: I compile with PGI 7.1.4 regularly on RHEL4U4 and don't see this
problem. It would be interesting to see the config.log's from these
builds to see the actual details of what went wrong.
...
Compiler OS Result
============ =================== ============
32-bit 7.1.6 CentOS 5.2 (32-bit) no threading
32-bit 7.1.4 CentOS 5.2 (32-bit) no threading **config.log attached**
32-bit 7.1.4 RHEL4u6 (64-bit) works!
32-bit 7.1.4 CentOS 5.1 (64-bit) no threading
...
I'm afraid this one is out of my bailiwick -- I don't know. Looking through
your config.log file, it does look like this lack of __builtin_expect is the
killer. FWIW, here's my configure output when I run with pgcc v7.1.4:
...
I suggest that you bring this issue up with PGI support; they're fairly
responsive on their web forums.
...
In case anyone's interested, the fix is to upgrade to at least PGI 7.2-2.
It seems that there was a change to glibc between RHEL4 and RHEL5 (2.3 vs.
2.5) which requires __builtin_expect to be defined when using certain
pthread library functions.
This also appears to be a problem for the Sun Studio 12 compiler (bug id
6603861), but it would seem that Sun's not in a hurry to fix it.
Thanks for your time,
Mark
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Mark Dixon Email : m.c.di...@leeds.ac.uk
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