On Wed, 25 Nov 2020, Dave Love via users wrote:
The perf test says romio performs a bit better. Also -- from overall
time -- it's faster on IMB-IO (which I haven't looked at in detail, and
ran with suboptimal striping).
I take that back. I can't reproduce a significant difference for total
I
I will have a look at the t_bigio tests on Lustre with ompio. We had from
collaborators some reports about the performance problems similar to the one
that you mentioned here (which was the reason we were hesitant to make ompio
the default on Lustre), but part of the problem is that we were not
Hi Edgar,
Thank you so much for your reply. Having run a number of Lustre systems
over the years, I fully sympathise with your characterisation of Lustre as
being very unforgiving!
Best wishes,
Mark
On Thu, 26 Nov 2020, Gabriel, Edgar wrote:
I will have a look at the t_bigio tests on Lustr
