[mpich-discuss] COMM_SELF and collective IO
burlen.loring at gmail.com
Fri Oct 16 19:21:48 CDT 2009
I could then I will have to have two codes with only a one line difference.
Rajeev Thakur wrote:
> Why don't you just use MPI_File_read instead?
>> -----Original Message-----
>> From: mpich-discuss-bounces at mcs.anl.gov
>> [mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of burlen
>> Sent: Friday, October 16, 2009 5:39 PM
>> To: mpich-discuss at mcs.anl.gov
>> Subject: [mpich-discuss] COMM_SELF and collective IO
>> I have an io code that uses the subarray type. I use the
>> collective IO function, MPI_File_read_all. Now, I have a use
>> case where each process needs to read independently of the
>> others. What I am tempted to do is change the communicator to
>> MPI_COMM_SELF and use the same code. I suspect that this is a
>> bad idea. Is it?
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