testing the right things: do warmup
> transfers, make sure
> you're not swapping, make sure all the processes and memory are pinned
> properly, make sure you're
> on an otherwise-quiet machine, ... etc. All the Usual Benchmarking Things.
>
> --
> Jeff Squyres
> jsquy..
tc. All the Usual Benchmarking Things.
--
Jeff Squyres
jsquy...@cisco.com
From: devel on behalf of Giorgos Katevainis
via devel
Sent: Thursday, July 28, 2022 9:33 AM
To: Open MPI Developers
Cc: Giorgos Katevainis
Subject: [OMPI devel] Rationale behind memcpy chun
Hello all,
I've come across the "memcpy_chunk_size" MCA parameter in smsc/xpmem, which
effectively causes
memory copies to take place in chunks (used in mca_smsc_xpmem_memmove()). The
comment reads:
"Maximum size to copy with a single call to memcpy. On some systems a smaller
or larger number
