Hints on improving performance with WRF and Pnetcdf

[Craig Tierney]

On 9/8/10 8:25 AM, Wei-keng Liao wrote:
> Craig,
>
> Could you check the stripe count and size of the files created by your run (linked with my ROMIO)?
> Or set the permission for me to have a look on Ranger.
>
> One question, have you run the same jobs on other machines with different parallel file systems?
> If yes, were the I/O performance much better than on Ranger?
>
> Wei-keng
>

I am not running on Ranger (I just have in the past).  I am trying to
improve WRF IO performance on a NOAA machine.  I am going to do the
things that Rob suggested I try, it will just take a little time to
get it going.

Craig



> On Sep 8, 2010, at 8:36 AM, Craig Tierney wrote:
>
>> I am not aware of my IO patterns (I know I should, but I am trying to
>> act like a normal user and not dig into these things).  I am using WRF, which is passing IO to PNETCDF, and then onto Romio.  My concern is how to get WRF and Pnetcdf to do anything useful.
>>
>> Craig
>>
>