Intel® Fortran Compiler
Build applications that can scale for the future with optimized code designed for Intel® Xeon® and compatible processors.
28543 Discussions

Xeon 4-processor chip uses only 25% total CPU time

jswaugh
Beginner
‎02-20-2008 01:09 PM
327 Views
A program is bulit under Intel Fortran 9 usingVisual Studio.NET 2003. When running, Windows Task Mgr. shows 4 processors, but only 25% total CPU use. On another machine with an older Pentium chip the same program shows 100% CPU use, and runs faster. Is there some project setting I am missing?
0 Kudos

Link Copied

1 Reply
TimP
Honored Contributor III
‎02-20-2008 01:45 PM
327 Views
You must build your application for multi-core processing in order to take advantage of it. This is the purpose of the options /Qparallel or /Qopenmp.
0 Kudos
Copy link
Reply

Community support is provided during standard business hours (Monday to Friday 7AM - 5PM PST). Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.