mersenneforum.org - View Single Post - Crash doing large post-processing job

wombatman · 2013-10-22, 04:56

I'm working on post-processing of W_2_736 for NFS@Home. When reading the relations in, there's a host of error -1 and -11, but it ultimately reads in ~124.5M relations. It goes through all of the reduction steps and end up around 9M or so. The crash occurs at the full merge step with exception C00000374, which is a heap corruption error.

This is with MSieve 1.52 SVN 945, which I have used to factor other smaller numbers without issue. I watched the amount of RAM used, and it never rose above ~2.6GB out of 8 GB available, so it shouldn't be a memory issue. I'm currently using an SVN900 exe to see if that works. Any ideas what might be the cause of this crash?

2013-10-22, 04:56	#1
wombatman I moo ablest echo power! May 2013 1,741 Posts	Crash doing large post-processing job I'm working on post-processing of W_2_736 for NFS@Home. When reading the relations in, there's a host of error -1 and -11, but it ultimately reads in ~124.5M relations. It goes through all of the reduction steps and end up around 9M or so. The crash occurs at the full merge step with exception C00000374, which is a heap corruption error. This is with MSieve 1.52 SVN 945, which I have used to factor other smaller numbers without issue. I watched the amount of RAM used, and it never rose above ~2.6GB out of 8 GB available, so it shouldn't be a memory issue. I'm currently using an SVN900 exe to see if that works. Any ideas what might be the cause of this crash?