Thermal analysis not using full potential of a single core?
Thermal analysis not using full potential of a single core?
(OP)
I gather that most of cosmos/simulation is single threaded most of the time for a single simulation. Although I've come to terms with that, I'd still like to get everything I can out of a single thread. I've noticed that while I run simulations total CPU usage hovers around 6% and rarely exceeds 10% (except briefly between time steps when it goes truely parallel) There must be some sort of bottleneck somewhere causing this but I don't know where to look. Has anyone successfully tackled a similar issue? Is this the case for everyone?
A few details I left out in the below picture are that i was using the sparse solver (although both are the same for me in this regard) and that it was a transient analysis.
Thanks!
A few details I left out in the below picture are that i was using the sparse solver (although both are the same for me in this regard) and that it was a transient analysis.
Thanks!






RE: Thermal analysis not using full potential of a single core?
If there is a lot of disk activity you might benefit from a solid state hard drive. I haven't tested them yet, but for FEA with a lot of disk access they should help.
Of course the first thing to ask is how much ram you have. I'm guessing you have quite a bit, but I have to ask.
TOP
CSWP, BSSE
www.engtran.com www.niswug.org
"Node news is good news."
RE: Thermal analysis not using full potential of a single core?
I'm surprised it's only loading one core for your analysis. I haven't done much thermal (other than in FloWorks), but my static FEA runs can often utilize all eight cores on my machine.
RE: Thermal analysis not using full potential of a single core?
It took me a while to free up some time to check but when I saw the word server in the destination file I literally laughed out loud. I set it to a local file and it ripped through the above simulation in 42 seconds where it took 10+ minutes before. Still only running a single core for the bulk of it but going from 6% to 25% of available resources is a -huge- productivity boost.
I didn't immediately try it out because I was "so sure" we didn't have it set up that way. Now I can increase the complexity of my simulations an order of magnitude and get back to complaining :)
RE: Thermal analysis not using full potential of a single core?
TOP
CSWP, BSSE
www.engtran.com www.niswug.org
"Node news is good news."