| Title: | Parallel processing through Workstation Farms. |
| Notice: | MSBCS::HPC (renamed from HPCGRP::WORKSTATION_FARMS) |
| Moderator: | MSBCS::SYSTEM |
| Created: | Tue Oct 27 1992 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 507 |
| Total number of notes: | 1791 |
Hi,I got the question of parallel i/o from our customer.
I think the current version of Digital's HPF & PSE dose not have
the parallel i/o capability. Read/Write operations are done on only peer 0.
MasPar's parallel fortran90 or C had those capability.
How about this capability or plan to introduce to digital's HPF.
And are there the parallel i/o in HPF standard specification ?(v1.* or v2.* )
For example, parallel i/o is good performance for read/write some large
temporary files using the distributed memory - i/o module -disk systems.
!hpf$ distribute a(block)
:
real a(1000)
:
read(10,*) a
best regards,
toshihiro
Digital Japan
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 500.1 | Parallel I/O from HPF | NETRIX::"[email protected]" | Jonathan Harris | Thu Mar 27 1997 14:27 | 18 |
Parallel I/O to temporary files is easy for users to write themselves. We
have
included a sample application in the /usr/examples/hpf directory that does
exactly that.
Language and runtime support for parallel I/O is being discussed by the HPF
Forum and other standards bodies, but no consensus has been reached on the
right
way to do it. We are following those efforts, as we know that this is
important
for users.
Can you ask the customer what kind of parallel I/O support they would like to
see?
Jonathan Harris
HPF Project Leader
[Posted by WWW Notes gateway]
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| 500.2 | Thank you. | TKOVOA::ISHIBASHI_T | Wed Apr 09 1997 13:38 | 7 | |
Thank you, Re:1.
We hope the implementation of language and runtime parallel i/o in
our fortran for future, if hpf forum take the consensus of them.
toshihiro
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