[FLASH-USERS] StirTurb Restart

Klaus Weide klaus at flash.uchicago.edu
Mon Sep 9 14:54:29 EDT 2013


On Mon, 9 Sep 2013, Evan Scannapieco wrote:

> Hi Folks,
> 
> So I have a problem.  I can't do a restart for the StirTurb problem.  
> I've run StirTurb problems of many kinds for quite a while now, but have 
> never been able to restart them, neither on our local cluster, nor on 
> XSEDE resources. This time we must restart, as there is no workaround 
> for the problem we are trying to do.

Evan,

What do you mean with "I can't do a restart"? is there a failure at
setup time, during compilation, or at runtime, or do you just get the
wrong results?

What are the error messages (standard output and log file if you get that 
far)?

> Clearly it has something to do with IO_writeUserArray.F90 and 
> IO_readUserArray.F90 and how they link with the hdf5 and such. Dean 
> Townsley and Bob Fisher suggested that this might have to with hdf5 
> flags choice I have tried with and without parallel IO, without and 
> without the --with-default-api-version=v16 flag on, on both FLASH 3.2 
> and FLASH 4, And thus far I failed to come up with any combination that 
> gives successful results.
> 
> So I'm wondering if you any one has an idea what is the combination of: 
> hdf5 version and compiler flags used when building it (Id prefer serial version if possible)
> MPI version (and type such as openmp, mvapich, mvapich2, etc.)
> Compiler (hopefully intel is okay) and if so which version of intel compilers? 13?
> FLASH version and flags (I'd prefer if I can do it with FLASH4, but can live with 3.2 also).

It all should work unless there is some library mismatch, as long as you 
are using parallel I/O ('+parallelIO').  Yes, that means you also need
a parallel build of your HDF5 library.


Can you run any other Flash test simulation with parallel IO on THIS 
system?

Can you run a parallel StirTurb restart (maybe a smaller test) on another 
system?


Klaus



More information about the flash-users mailing list