Thanks to All for your help in testing Perl's robustness in 32 and 64 bit modes on different architectures. So far all my tests on platforms other than opteron are running perfectly (IA32, irix-64). Tentative diagnosis is a (wonderfully) intermittent memory error on the opteron box in question. Nathan ps. Any successful builds of NCBI toolkit out there? We can build it but do not currently trust the output data (compared to other archs). -n Joseph Landman wrote: >On Wed, 2003-08-06 at 08:51, Nathan O. Siemers wrote: > > > >>memtest86 does not compile on the opteron, giving an error during an as >>assembly. >> >> > >I took the liberty again of moving a copy of the memtest .iso image to >my download site. You can pull it from >http://scalableinformatics.com/downloads/memtest86-3.0.iso . Burn it to >a CD in the usual way, then boot from CD. Alternatively you can use the >floppy version, though I did not compile that. > > > >