View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0001432 | OpenFOAM | Bug | public | 2014-10-31 17:47 | 2015-01-28 09:04 |
| Reporter | albertop | Assigned To | henry | ||
| Priority | normal | Severity | trivial | Reproducibility | always |
| Status | resolved | Resolution | fixed | ||
| Platform | Linux | OS | OpenSuse | OS Version | 13.2 |
| Summary | 0001432: Improved compile settings with Intel compilers | ||||
| Description | By default, the Intel ICC (v. 13) compiler - does not catch division by zero and other problems with floating point operations - uses fast1 floating point operations, which may lead to problems in some conditions This can be solved by adding the options: -fp-trap=common -fp-model precise to the C++ compiler rules in wmake/rules/linuxIcc wmake/rules/linux64Icc Regards, Alberto | ||||
| Tags | No tags attached. | ||||
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Well this is certainly annoying... - Intel is currently marketing the 15.* series, with no "free for non-commercial use" version available yet - There is no longer a download link for 14.0.1 for Linux, which is the supported version of for OpenFOAM 2.3.* - I can't find an online document indicating if these options for ICC are still available and/or default for 14.* and 15.* @Alberto: Any chance you have ICC 14 or 15, to check if these options are still applicable? |
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As you say, currently we are unable to test OpenFOAM with the Intel compiler. If Intel release version 15.* free for us to test we will do so and add the options Alberto suggests if they are still needed. |
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The options I indicated are still needed with ICC 15.x. I had to introduce them because we have licenses for Intel compilers on our cluster, and when a 'nan' is encountered, cases keep running. Only -fp-trap=common is needed for exception trapping. The floating point model is for accuracy, and probably less important. Unfortunately, I am not sure if/when there will be a 'free for non-commercial use' license. If you need to test anything, however, I probably can do it on our machines. |
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Resolved by commit 873e0c8d58acf0729d25d9328765e8c9b2bc4023 |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2014-10-31 17:47 | albertop | New Issue | |
| 2015-01-27 20:40 | wyldckat | Note Added: 0003592 | |
| 2015-01-27 20:55 | henry | Note Added: 0003593 | |
| 2015-01-28 03:45 | albertop | Note Added: 0003601 | |
| 2015-01-28 09:03 | henry | Note Added: 0003604 | |
| 2015-01-28 09:03 | henry | Status | new => resolved |
| 2015-01-28 09:03 | henry | Resolution | open => fixed |
| 2015-01-28 09:03 | henry | Assigned To | => henry |
