Re: timing parallel programs

Article View: comp.sys.sequent

Article #898

#898

From: Luis Barriga
Date: Thu, 15 Feb 1990 09:44

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>We want to get accurate timings of the run-times of Prolog programs when we
>use 1, 2, ... 11 processors in order to accurately measure the speed-ups.
I may thinks of two ways more of solving this problem.

1) You can use the "at" facility to schedule a job at any tile of any
day, while hopefully nobody is logged into your sequent (maybe Friday
or Saturday night). This works if your application does not take days
to finish and there is no interaction with the user. If the input is
the same you can prepare it in a file and redirect it from standart
input.

2) I have read about a system call "getrusage" that gives info about
resource utilization: system, user time consumed, and other stuff. Is
there any problem using it?
--
________________________________________________________________________|
   Luis Barriga			     The Royal Institute of Technology	|
				     Dep. Computer systems (TDS)	|
   e-address: luis@tds.kth.se	     S-100 44 Stockholm			|
				       SWEDEN     			|
________________________________________________________________________|

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From: luis@octopus.tds.kth.se (Luis Barriga)
Newsgroups: comp.sys.sequent
Subject: Re: timing parallel programs
Message-ID: <LUIS.90Feb15104438@molly.octopus.tds.kth.se>
Date: 15 Feb 90 09:44:38 GMT
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In-reply-to: jim@cs.strath.ac.uk's message of 12 Feb 90 15:28:54 GMT

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