Hi,

Here is some description and performance results for the new Lustre ADIO driver. You might be interested.

The main purpose of the new lustre adio driver is to collect the small size I/O requests into fewer number of larger ones according to Lustre's striping feature with low overhead automatically. We also provide some hints for performance tuning.

In the following graph, the recent FLASH I/O benchmarking result shows that the new driver performs much better than the old one, especially for a large-scale system.
In this test, FLASH I/O blocksize is 4*4*4 that means each 3 clients write 40KB, 40.5KB and 42KB respectively. The I/O operation iteration (nvar) is set to 1024.



HTH,
LiuYing


emoly.liu wrote:
sending to lustre-devel@ as well

Hello,

A new Lustre ADIO driver for MPICH2-1.0.7 is available now, which is co-developed by SUN Lustre group and Oak Ridge National Lab. (The patch is attached.)

Any feedback and performance results are welcomed.

Thanks,
LiuYing


_______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss


-- 
Best regards,

LiuYing
System Software Engineer, Lustre Group
Sun Microsystems ( China ) Co. Limited
_______________________________________________
Lustre-discuss mailing list
[email protected]
http://lists.lustre.org/mailman/listinfo/lustre-discuss

Reply via email to