On parallel

January 16, 2007, 06:50

I have a CFD software(not written by myself), this code can be run parallel using MPI. On compiled it, I try to run it, and I found that on 2 CPUs, it can run properlly, but on more than 3 CPUs, the program will stopped, no errors were reported, there is no restrictions on use of PC cluster, Can anyone help me on this???

January 17, 2007, 00:38

It is difficult to identify which kinds of problem your code have according to your information.

January 17, 2007, 08:47

Check the MPI statements.May be the person has assumed only @ CPUs were there.

January 16, 2007, 06:50	On parallel	#1
lee Guest Posts: n/a	I have a CFD software(not written by myself), this code can be run parallel using MPI. On compiled it, I try to run it, and I found that on 2 CPUs, it can run properlly, but on more than 3 CPUs, the program will stopped, no errors were reported, there is no restrictions on use of PC cluster, Can anyone help me on this???

January 17, 2007, 00:38	Re: On parallel	#2
merryfish Guest Posts: n/a	It is difficult to identify which kinds of problem your code have according to your information.

January 17, 2007, 08:47	Re: On parallel	#3
Harish Guest Posts: n/a	Check the MPI statements.May be the person has assumed only @ CPUs were there.

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