Hmm, you see the same performance delta that I see. I think this is something worth looking into for the follow-on to 2.4.3. Now that hyperthreading and multi-core processing is here on the PC it would be nice to see the performance in PDL. Thanks for trying it out.
--Chris Sisyphus wrote: > > ----- Original Message ----- > From: "Chris Marshall" <[EMAIL PROTECTED]> > . > . > > > > Some of the reading I did suggested that the > > pthreads library must come before the c library or > > that it could be loaded dynamically. I assumed it > > was being pulled in somehow---because of my initial > > success with the 2X performance increase. > > Once I managed to get the PDL build process to > link to the pthread library (via a couple of minor > amendments to Basic/Core/Makefile.PL) then setting > WITH_POSIX_THREADS => 1 was all I needed to do on > linux. Running 'perl -Mblib t/pthread.t' revealed > that threaded and unthreaded took the same amount of > time (within a few percent). > > Cheers, > Rob
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