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| <== Date ==> | <== Thread ==> |
|---|
| Subject: | RE: Possible issue with epics-base 7 compilation |
| From: | Mark Rivers <[email protected]> |
| To: | "'Gofron, Kazimierz'" <[email protected]>, "[email protected]" <[email protected]> |
| Date: | Tue, 13 Feb 2018 00:36:59 +0000 |
|
Hi Kaz, I don’t think this is a new problem, and is not specific to EPICS 7. Are you using the make 4.1 that Andrew built and put on the EPICS Web page?
If I run “make –sj” with that version then it will occasionally get into a state when one “make” process is using 100% of a core forever and it never completes. This happens with 3.14.12.5, 3.15.5, and 7.0.1.1. I have never had a problem if I use “make –sj8” on my 8-core machine. Mark From: Gofron, Kazimierz [mailto:[email protected]]
Hi,
There is a possible threading issue when compiling epics-base 7 using 'make -sj' on 8 hyperthread system. Observed on System X 3250 M5 with 8 hyperthreads, running windows 7 Professional, Xeon E3-1230 v3, and Visual Studio 2017. make -sj never completes compilation make -sj4 completes compilation Compilation always successfully completes on Lenovo W550s laptop with 4 hyperthreads. The two attached files show the two cases when compiling 'make' and 'make -sj' on the System X 3250 M5 (8 hyperthreads). Kaz |