I am using pvfs 2.8.2 on OpenSuse 11.3. I compiled using gcc 4.5.0
I am not sure what backend is being used on the server side? Is there a
way I can find this out?
Thanks,
Kshitij
On 11/02/2011 09:32 AM, Michael Moore wrote:
So I can re-create the issue:
1) what version of OrangeFS, OS, etc. are you using?
2) what IO backend are you using on the server side (alt-aio or directio)?
Thanks,
Michael
On Tue, Nov 1, 2011 at 3:11 PM, Kshitij Mehta <[email protected]
<mailto:[email protected]>> wrote:
Hello all,
I have a program in which 2 threads write data to a pvfs2 fs using
the writev function. I am seeing an incorrect file size after the
writes are done.
This is what the program does:
- Spawn 2 threads using OpenMP. Thread0 will write to file
test1.out, thread1 will write to file test2.out
- In a single writev call, each thread writes an iovec array of
512 elements, each element of size 1M. So a single writev call
writes 512M data. This cycle is performed twice in total, so each
thread writes a file of size 1G.
Once the program finishes, I see that the two files created are of
size 512M each, instead of 1G. I ran this program on a local hard
drive, and it works fine.
I have attached the program here. Any help is appreciated.
Regards,
Kshitij Mehta
PhD candidate
Parallel Software Technologies Lab
Dept. of Computer Science
University of Houston
Houston, Texas, USA
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