7:43 a.m.
Hi,
I wonder if there are some options for sending/brodcasting arrays and/or
bundles over the MPI world?
Marcin
--
Marcin Błażejowski
8:08 a.m.
Am 28.08.2019 um 09:43 schrieb Marcin Błażejowski:
Hi,
I wonder if there are some options for sending/brodcasting arrays and/or
bundles over the MPI world?
Arrays - I don't think so, but the gretl MPI doc says about bundles:
"for bundles only mpisend, mpirevc and mpibcast are supported", so yes.
hth,
sven
8:24 a.m.
On 28.08.2019 10:08, Sven Schreiber wrote:
Am 28.08.2019 um 09:43 schrieb Marcin Błażejowski:
> Hi,
>
> I wonder if there are some options for sending/brodcasting arrays and/or
> bundles over the MPI world?
Arrays - I don't think so, but the gretl MPI doc says about bundles:
"for bundles only mpisend, mpirevc and mpibcast are supported", so yes.
I'm ashamed. I was using MPI doc from December, 2016...
Thanks Sven!!!
Marcin
--
Marcin Błażejowski
11:56 a.m.
On Wed, 28 Aug 2019, Sven Schreiber wrote:
Am 28.08.2019 um 09:43 schrieb Marcin Błażejowski:
> Hi,
>
> I wonder if there are some options for sending/brodcasting arrays and/or
> bundles over the MPI world?
Arrays - I don't think so, but the gretl MPI doc says about bundles:
"for bundles only mpisend, mpirevc and mpibcast are supported", so yes.
One point to note: if you can avoid sending bundles, by sending
matrices or scalars, that's going to be a good deal more efficient.
The point is that bundles are sent via their serialization as XML
while matrices and scalars can be sent by much more direct means.
We should probably look into sending arrays; that ought to be
feasible, and relatively efficient.
Allin
12:09 p.m.
On 28.08.2019 13:56, Allin Cottrell wrote:
On Wed, 28 Aug 2019, Sven Schreiber wrote:
> Am 28.08.2019 um 09:43 schrieb Marcin Błażejowski:
>> Hi,
>>
>> I wonder if there are some options for sending/brodcasting arrays and/or
>> bundles over the MPI world?
> Arrays - I don't think so, but the gretl MPI doc says about bundles:
> "for bundles only mpisend, mpirevc and mpibcast are supported", so yes.
One point to note: if you can avoid sending bundles, by sending
matrices or scalars, that's going to be a good deal more efficient.
The point is that bundles are sent via their serialization as XML
while matrices and scalars can be sent by much more direct means.
But still more
efficient then writing a bundle on disk by one process
and reading it by another, I belive :)
We should probably look into sending arrays; that ought to be
feasible, and relatively efficient.
Thanks Allin!!!
Marcin
--
Marcin Błażejowski
1701
days inactive
1701
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4 comments
3 participants
participants (3)
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Allin Cottrell -
Marcin Błażejowski -
Sven Schreiber