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Some question with IFL 8.0

changhee
Beginner
‎01-27-2004 04:51 AM
398 Views
I tried to run the same parallelprogram with IFL7.1 and IFL8.0, respectively.
And I measured the elapsed time of the program, using "RDTSC" instruction.
Strangely, the elapased time of the program using IFL7.1 isquite different from one using IFL8.0
Isuspected there are somechanges incompiler options, butI couldn't findanything. Is there any idea?
The command line options I've used are like the following.
"IFL /Qopenmp /Od /MT /W0 parallel-application.f timer.obj"
Could you give me any advice ? I look forward to your reponse.
Thanks
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TimP
Honored Contributor III
‎01-27-2004 05:55 AM
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I doubt that any goals for execution speed were taken for either version of the compiler, for programs compiled at /Od. Without that option, if 8.0 were slower than 7.1, that could be cause to file a complaint.
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