[FLASH-USERS] Benchmarking FLASH/Restart at different speed issue

[Paul M. Rich]

Sanjib,

That is a very interesting problem.  Could you provide some more 
information about it, such as the architecture you are running on, some 
of the output and/or the logfile. 

--Paul Rich

sanjib gupta wrote:

> Hello,
>
> I've noticed a peculiarity regarding the speed at which FLASH runs ....
> Say I set up a job on 64 processors and run it for a while.
> Then I kill the job , restart the job from the last checkpoint file 
> outputted in the first run, no changes in
> "flash.par" except restart=true and cpnumber is specified....
> The same job now runs 20-30 times faster, without any change of # of 
> processors.
> Any hints ?
> Would be good to know why this is happening  since we plan to 
> benchmark FLASH runs vs. # of processors used and get a sense of
> how fine a resolution we can afford for our turbulent burning 
> scenarios...
>
> Thanks much,
> Sanjib.
>
>
>