I mentioned this in another thread, but I respond here too.
Using this 4.2.1 version I can now do "make -j" on my Windows 7 machine with various versions of Visual Studio (2010, 2015, 2017) and I have not yet seen a problem. With the previous 4.1 version it would always hang with make -j in the areaDetector/ADSupport/supportApp/hdf5Src directory. Make -j8 would work OK.
I have now built all of base 7.0.1 and synApps (including asyn, seq, areaDetector) with make -sj with no problems.
Mark
> -----Original Message-----
> From: Andrew Johnson [mailto:[email protected]]
> Sent: Tuesday, February 13, 2018 3:41 PM
> To: Gofron, Kazimierz <[email protected]>; Mark Rivers <[email protected]>;
> [email protected]
> Subject: Re: Possible issue with epics-base 7 compilation
>
> Hi Guys,
>
> I don't know if an update will make any difference, but I just built a
> copy of the latest GNU make 4.2.1 which you can download from
> https://epics.anl.gov/download/tools/make-4.2.1-win64.zip
>
> Please let us know if this helps.
>
> - Andrew
>
> On 02/12/2018 06:42 PM, Gofron, Kazimierz wrote:
> > Hi Mark,
> > Indeed it is make 4.1 from EPICS web page, that Andrew build.
> > Kaz
> > ________________________________________
> > From: Mark Rivers [[email protected]]
> > Sent: Monday, February 12, 2018 7:36 PM
> > To: Gofron, Kazimierz; [email protected]
> > Cc: [email protected]
> > Subject: RE: Possible issue with epics-base 7 compilation
> >
> > 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]]
> > Sent: Monday, February 12, 2018 6:23 PM
> > To: [email protected]
> > Cc: Mark Rivers <[email protected]>; [email protected]
> > Subject: Possible issue with epics-base 7 compilation
> >
> > 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
> >
> >
>
> --
> Arguing for surveillance because you have nothing to hide is no
> different than making the claim, "I don't care about freedom of
> speech because I have nothing to say." -- Edward Snowdon
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