* RFI:Ada concurrent tasks
@ 1987-07-14 15:08 holt
1987-07-15 11:15 ` Doug Bryan
1987-07-17 14:28 ` stt
0 siblings, 2 replies; 3+ messages in thread
From: holt @ 1987-07-14 15:08 UTC (permalink / raw)
<I'm posting this for Bryan Wolf, McDonnell Douglas - Inco, Inc.>
How many concurrent *Ada* tasks has anyone out there in net.land
managed to have running simultaneously, with regards to performance
and on what hardware?
--
/*--------------------------------------------------------------*
* Mark L Holt *
* McDonnell Douglas - Inco, Inc. *
* ...!seismo!sundc!hadron!inco!holt *
* "If you ain't the lead dog, the scenery never changes" *
* DISCLAIMER: The opinions expressed are my own and in no way *
* reflect the views of McDonnell Douglas or its subsidiaries. *
*--------------------------------------------------------------*/
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: RFI:Ada concurrent tasks
1987-07-14 15:08 RFI:Ada concurrent tasks holt
@ 1987-07-15 11:15 ` Doug Bryan
1987-07-17 14:28 ` stt
1 sibling, 0 replies; 3+ messages in thread
From: Doug Bryan @ 1987-07-15 11:15 UTC (permalink / raw)
> How many concurrent *Ada* tasks has anyone out there in net.land
> managed to have running simultaneously, with regards to performance
> and on what hardware?
one
(aren't all validiated compilers for single CPU targets?)
doug
-------
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: RFI:Ada concurrent tasks
1987-07-14 15:08 RFI:Ada concurrent tasks holt
1987-07-15 11:15 ` Doug Bryan
@ 1987-07-17 14:28 ` stt
1 sibling, 0 replies; 3+ messages in thread
From: stt @ 1987-07-17 14:28 UTC (permalink / raw)
As a test case, we created and executed a program
which spawned more than 500 Ada tasks using the
Intermetrics Real-Time MVS Ada compiler on a 4341. This compiler
uses one MVS task for each Ada task, and provides
for "true" concurrency on a multi-processor such as a 3090.
The primary performance problem involved certain
linear-list algorithms inherent in MVS dealing with
task creation. Once the tasks were created, performance
was "fine."
Tucker Taft
c/o Intermetrics, Inc.
Cambridge, MA 02138
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