RE: Possible issue with epics-base 7 compilation

["Gofron, Kazimierz" <kgofron@bnl.gov>]

Hi Mark,

This 'make -sj8' command window cannot be closed from Windows Task Manager, nor by clicking Close/X buttons. I have seen this only on this IBM server.

-Kaz

-----Original Message-----
From: Mark Rivers [mailto:rivers@cars.uchicago.edu] 
Sent: Wednesday, February 14, 2018 1:15 PM
To: Gofron, Kazimierz; 'Andrew Johnson'; tech-talk@aps.anl.gov
Subject: RE: Possible issue with epics-base 7 compilation

Hi Kaz,

> When make 4.1 version was used, there was an instance that 'make -sj8' 
> did not complete compilation of epics-base, and command window could 
> not be closed. I am waiting for scheduled suitable time to log-out, or reboot this server to resolve that issue.

I have always been able to recover by opening the Windows Task Manager, Processes tab, and killing any "make" processes.  Very rarely there are orphan "perl" or "cl" processes that need to be killed as well.  I have never had to log out or restart the machine.

Mark


> -----Original Message-----
> From: Gofron, Kazimierz [mailto:kgofron@bnl.gov]
> Sent: Wednesday, February 14, 2018 12:00 PM
> To: 'Andrew Johnson' <anj@aps.anl.gov>; Mark Rivers 
> <rivers@cars.uchicago.edu>; tech- talk@aps.anl.gov
> Subject: RE: Possible issue with epics-base 7 compilation
> 
> Hi,
> 
> Using 'make -sj', I compiled epics-base (7.0.1.1) with make-4.2.1, and 
> compilation most  of the time completed. The good thing is that I was 
> able to close the command window for incomplete two compilations. Also 
> as Mark stated, compilation completed successfully with 'make -sj8' (the server has 8 hyper threaded cores).
> 
> When make 4.1 version was used, there was an instance that 'make -sj8' 
> did not complete compilation of epics-base, and command window could 
> not be closed. I am waiting for scheduled suitable time to log-out, or reboot this server to resolve that issue.
> 
> -Kaz
> 
> -----Original Message-----
> From: Andrew Johnson [mailto:anj@aps.anl.gov]
> Sent: Tuesday, February 13, 2018 4:41 PM
> To: Gofron, Kazimierz; Mark Rivers; tech-talk@aps.anl.gov
> 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 [rivers@cars.uchicago.edu]
> > Sent: Monday, February 12, 2018 7:36 PM
> > To: Gofron, Kazimierz; tech-talk@aps.anl.gov
> > Cc: engbretson@anl.gov
> > 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:kgofron@bnl.gov]
> > Sent: Monday, February 12, 2018 6:23 PM
> > To: tech-talk@aps.anl.gov
> > Cc: Mark Rivers <rivers@cars.uchicago.edu>; engbretson@anl.gov
> > 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