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#1254 (problem with O3 optimisation level using ifort: NEMO crashes) – NEMO

Opened 9 years ago

Closed 8 years ago

Last modified 16 months ago

#1254 closed Bug (invalid)

problem with O3 optimisation level using ifort: NEMO crashes

Reported by: clevy Owned by: nemo
Priority: high Milestone:
Component: OCE Version: v3.6
Severity: Keywords: Misc. NVTK SETTE v3.6
Cc:

Description (last modified by clevy)

During tests for AMM with MERGE2013 rev 4521, it appears that ifort compiler options as defined in ARCH/arch-x3750_ADA.fcm :

%FCFLAGS             -DCPP_PARA -i4 -r8 -O3 -xAVX -fp-model precise

are invalid, and produce strange results, including violent crash of NEMO.
This has been confirmed on another test using ORCA1 configuration.
Must be further explored carefully.
Meanwhile, switching to

%FCFLAGS             -DCPP_PARA -i4 -r8 -O2 -fp-model precise

makes NEMO work fine again.

These results have been found on ada.idris.fr (IBM cluster-Intel ES 4650 processors) with ifort version 13.0.1.
Other tests using ifort will be usefull:

Commit History (0)

(No commits)

Change History (12)

comment:1 Changed 9 years ago by clevy

  • Description modified (diff)

comment:2 Changed 8 years ago by clevy

  • Resolution set to invalid
  • Status changed from new to closed

comment:3 Changed 7 years ago by nicolasmartin

  • Keywords NEMO NVTK) SETTE Validation: added

comment:4 Changed 7 years ago by nicolasmartin

  • Keywords NVTK added; NVTK) removed

comment:5 Changed 7 years ago by nicolasmartin

  • Keywords validation added; Validation: removed

comment:6 Changed 7 years ago by nicolasmartin

  • Keywords nemo_v3_6* added

comment:7 Changed 7 years ago by nicolasmartin

  • Milestone NEMO Validation: SETTE (previously NVTK) deleted

Milestone NEMO Validation: SETTE (previously NVTK) deleted

comment:8 Changed 7 years ago by nicolasmartin

  • Keywords NEMO removed

comment:9 Changed 7 years ago by nicolasmartin

  • Keywords validation removed

comment:10 Changed 5 years ago by nemo

  • Keywords release-3.6* added; nemo_v3_6* removed

comment:11 Changed 5 years ago by nemo

  • Keywords release-3.6* removed

comment:12 Changed 16 months ago by nemo

  • Keywords Misc. v3.6 added; nemo_v3_6* removed
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