On 11/8/11 5:25 PM, "George Bosilca" wrote:
>2. one sided: A quick look in the OSC seems to indicate there are some
>special handling to be done in the RDMA one. Look at
>ompi_osc_rdma_sendreq_t in osc_rdma_sendreq.h, it is using a trick to
>store the remote segments. First, the mca_btl_base_segm
On Nov 8, 2011, at 10:36 , Nathan T. Hjelm wrote:
> On Tue, 8 Nov 2011 06:36:03 -0800, Rolf vandeVaart
> wrote:
>>> george.
>>>
>>> PS: Regarding the hand-copy instead of the memcpy, we tried to avoid
>> using
>>> memcpy in performance critical codes, especially when we know the size of
>>> the
That makes sense to me.
-Original Message-
From: devel-boun...@open-mpi.org [mailto:devel-boun...@open-mpi.org] On
Behalf Of Nathan T. Hjelm
Sent: Tuesday, November 08, 2011 8:36 AM
To: Open MPI Developers
Subject: Re: [OMPI devel] Remote key sizes
On Tue, 8 Nov 2011 06:36:03 -0800
On Tue, 8 Nov 2011 06:36:03 -0800, Rolf vandeVaart
wrote:
>> george.
>>
>>PS: Regarding the hand-copy instead of the memcpy, we tried to avoid
> using
>>memcpy in performance critical codes, especially when we know the size of
>>the data and the alignment. This relieves the compiler of adding u
> george.
>
>PS: Regarding the hand-copy instead of the memcpy, we tried to avoid using
>memcpy in performance critical codes, especially when we know the size of
>the data and the alignment. This relieves the compiler of adding ugly
>intrinsics,
>allowing it to nicely pipeline to load/stores. An
