CFX on different number of CPUs

cstebbings · April 19, 2011, 09:33

We recently installed CFX 13.0 on our 64-bit PC (Windows XP). We can get it to run on 4 CPUs but if we try to run it on 1 or 3 CPUs an error of not being able to allocate enough memory is given.
We can run CFX 11.0 on 1 and 3 CPUs on this machine.
Not sure what's going on with version 13.0.

siw · April 19, 2011, 13:01

There's an unofficial, unsupported fix (exe file) to CFX v13 that you can get by contacting ANSYS tech support.

I had an issue with v13 and memory allocation, in that it only allocates half the amount of memory for reals or integers even though it was okay in v12.1. I cannot remember the full details but it's something like that. In the end I cannot run my large meshes unless I double my physical memory.

So until we get either v13.1 or an offical fix I'm staying with v12.1.

April 19, 2011, 09:33	CFX on different number of CPUs	#1
cstebbings New Member anonymous Join Date: Apr 2011 Posts: 7 Rep Power: 15	We recently installed CFX 13.0 on our 64-bit PC (Windows XP). We can get it to run on 4 CPUs but if we try to run it on 1 or 3 CPUs an error of not being able to allocate enough memory is given. We can run CFX 11.0 on 1 and 3 CPUs on this machine. Not sure what's going on with version 13.0.

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April 19, 2011, 13:01		#2
siw Senior Member Stuart Join Date: Jul 2009 Location: Portsmouth, England Posts: 733 Rep Power: 25	There's an unofficial, unsupported fix (exe file) to CFX v13 that you can get by contacting ANSYS tech support. I had an issue with v13 and memory allocation, in that it only allocates half the amount of memory for reals or integers even though it was okay in v12.1. I cannot remember the full details but it's something like that. In the end I cannot run my large meshes unless I double my physical memory. So until we get either v13.1 or an offical fix I'm staying with v12.1.