[Beowulf] glusterfs and openmpi/mpich problems

Joe Landman landman at scalableinformatics.com
Thu Jan 8 13:38:40 EST 2009


Gerry Creager wrote:
> We've been working with gluster of late, on our high throughput cluster 
> (126 nodes, gigabit connected).  We did some tweaking recently, and now, 
> my test code, an instance of WRF on 128 cores, just sorta dies.
> 
> More specifically, it takes 19 minutes to write the first 403MB file to 
> disk, while various tasks are mindlessly using CPU time, but only the 
> initial output file appears to get written.
> 
> Does anyone have any history with gluster who might be willing to offer 
> some help/hints?

Yes.  What translators are you using?  What is your back-end file system 
underneath glusterfs?  Which kernels are you using?



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Joseph Landman, Ph.D
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