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[Bug libfortran/52537] New: slow trim function
- From: "talebi.hossein at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 09 Mar 2012 08:47:55 +0000
- Subject: [Bug libfortran/52537] New: slow trim function
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52537
Bug #: 52537
Summary: slow trim function
Classification: Unclassified
Product: gcc
Version: 4.6.1
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: libfortran
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: talebi.hossein@gmail.com
Hello,
The trim function in Gfortran seems to be a a lot slower than the intel
compiler. Sometimes I have to read some input text files which can very
large(1.5GB); Comparing the intel and gfortran, the gfortran takes 150 seconds
where intel spends only 50 seconds. I checked, and there seems to a large time
spend on the trim function.
I am not sure if intel does some other optimization but I never got such huge
performance difference between gfortran and ifort.
Thank you.