Re: Possible issue with epics-base 7 compilation

[Andrew Johnson <anj@aps.anl.gov>]

I have updated the recommendations on
    https://epics.anl.gov/base/win32.php

Thanks,

- Andrew

On 02/22/2018 01:35 PM, Mark Rivers wrote:
> 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:anj@aps.anl.gov]
>> Sent: Tuesday, February 13, 2018 3:41 PM
>> To: Gofron, Kazimierz <kgofron@bnl.gov>; Mark Rivers <rivers@cars.uchicago.edu>;
>> 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

-- 
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