difference between cpu time and wall clock time

July 26, 2007, 14:01

hi,

I am using CFX11 on a Dual core AMD Opteron system. The mesh has 540,000 nodes and 3m elements. I setup PVM Local parallel in CFX-solver with 2 partitions. However, It took 2 hours to write the final result file.

I am wondering whether I can reduce this writing time.

Thanks a lot.

Tony

July 26, 2007, 14:04

I forgot to say that 2 hours of writing time is the difference between cpu time and wall clock time.

Tony

July 26, 2007, 15:40

July 26, 2007, 16:32

Use MPICH ... much less writing time.

July 26, 2007, 14:01	difference between cpu time and wall clock time	#1
tony Guest Posts: n/a	hi, I am using CFX11 on a Dual core AMD Opteron system. The mesh has 540,000 nodes and 3m elements. I setup PVM Local parallel in CFX-solver with 2 partitions. However, It took 2 hours to write the final result file. I am wondering whether I can reduce this writing time. Thanks a lot. Tony

July 26, 2007, 14:04	Re: difference between cpu time and wall clock tim	#2
tony Guest Posts: n/a	I forgot to say that 2 hours of writing time is the difference between cpu time and wall clock time. Tony

July 26, 2007, 15:40	found the answer in forum. (no text) NM	#3
tony Guest Posts: n/a

July 26, 2007, 16:32	Re: found the answer in forum. (no text)	#4
Help Guest Posts: n/a	Use MPICH ... much less writing time.

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