ANSYS CFX 10.0 Parallel Performance for Windows XP

August 11, 2006, 02:18

Hi,

I used CFX10.0 to run parallel cases on the Windows XP 32bit platform machines.I checked the performance in the task manager, it showed the performance of CPU is 50% on the each machine.

Hardware information of each machine as following:

1. Intel Xeon Dual Core 3.4Gb CPU 2. DDR 533 4Gb RAM Memery 3. 10/100/1000 Mbps 5 Port HUB/SWITCH

How could I use the full performance of CPU?

Thanks a lot!

August 11, 2006, 02:23

Hi,

Additionally, My hard disk is the SEGATE SATA 7200 rpm 80Gb.

Thanks a lot!

August 11, 2006, 05:50

Disable Hyper Threading from within the BIOS. That should work

August 11, 2006, 07:59

As far as I know Hyper Threading was just a pre step to the dual core processors. There you have 2 cores but only virtually. CFX never supportet that. Using CFX on (real!) dual core processors (I use a Smithfield) means that single job just uses one core. In the Task Manager you will see that with the 50% load. If you want to use the full processor power you have to run it in parallel: In your example 2 partitions per Cluster-Node.

August 13, 2006, 13:27

Activate "PVM Local Parallel" in the Run Mode menu in the Solver Manager New Job command. Set number of partitions = 2.

August 11, 2006, 02:18	ANSYS CFX 10.0 Parallel Performance for Windows XP	#1
Saturn Guest Posts: n/a	Hi, I used CFX10.0 to run parallel cases on the Windows XP 32bit platform machines.I checked the performance in the task manager, it showed the performance of CPU is 50% on the each machine. Hardware information of each machine as following: 1. Intel Xeon Dual Core 3.4Gb CPU 2. DDR 533 4Gb RAM Memery 3. 10/100/1000 Mbps 5 Port HUB/SWITCH How could I use the full performance of CPU? Thanks a lot!

August 11, 2006, 02:23	Re: ANSYS CFX 10.0 Parallel Performance for Window	#2
Saturn Guest Posts: n/a	Hi, Additionally, My hard disk is the SEGATE SATA 7200 rpm 80Gb. Thanks a lot!

August 11, 2006, 05:50	Re: ANSYS CFX 10.0 Parallel Performance for Window	#3
Michael B Guest Posts: n/a	Disable Hyper Threading from within the BIOS. That should work

August 11, 2006, 07:59	Re: ANSYS CFX 10.0 Parallel Performance for Window	#4
Patrick Guest Posts: n/a	As far as I know Hyper Threading was just a pre step to the dual core processors. There you have 2 cores but only virtually. CFX never supportet that. Using CFX on (real!) dual core processors (I use a Smithfield) means that single job just uses one core. In the Task Manager you will see that with the 50% load. If you want to use the full processor power you have to run it in parallel: In your example 2 partitions per Cluster-Node.

August 13, 2006, 13:27	Re: ANSYS CFX 10.0 Parallel Performance for Window	#5
Chebeba Guest Posts: n/a	Activate "PVM Local Parallel" in the Run Mode menu in the Solver Manager New Job command. Set number of partitions = 2.

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