Hi Everyone: This may not be the right forum for this!
I am doing some numerical weather prediction on my Phenom II x6 overclocked to 4GHz under OpenSuSE 12.1 with 16 GB 1666MHz memory. I had tested the system with “burn” (Intel?) under WinXP-64 and memtest86, and all seems stable. Is there a recommended multi-CPU system tester for Linux? I need memory, memory bandwidth reliability, FPU calculations, and the interprocessor-communications tested. Games testers don’t test memory enough. I can get memory from memtest86, but it doesn’t really check the system as a whole, including the OS.
I’ve gotten a few segfaults recently, and need to recheck the system, to make sure it’s the CFD software, not my hardware. Once before I received a Phenom-II that I was able to isolate to a bad onchip memory controller, as well as bad multichannel memoy.
Thank You Very Much,
Patricia
PS: I have a previous set of 4 ram sticks (16GB-1666MHz dual channel) in which one had a memory flaw (failed memtest86 always at the same address); however, it ran OK at 1333MHz, which is what the system clocked it down to during BIOS! Is this normal? What is the recommendation: should I try to isolate the bad stick and remove it (leaving 3) and clock the remaining at native (1666MHz), or whether I should use all 4 clocked at 1333MHz? My software is memory speed intensive. (computational fluid dynamics). Or maybe I should just try to replace the one bad stick? I’m not sure how that would affect dual channel memory.