EPICS Home

Experimental Physics and Industrial Control System


 
1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <20172018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <20172018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: Re: Problem with parallel make with seq 2.2.4 on Linux
From: Andrew Johnson <[email protected]>
To: <[email protected]>
Date: Fri, 13 Jan 2017 11:32:32 -0600
On 01/13/2017 10:21 AM, Mark Rivers wrote:
> I am seeing frequent errors when building seq 2.2.4 on Linux with
> parallel make.  This is with base 3.15.5 on a 20-core machine.
>  
> Sometimes it works:
>  
> corvette:~/support/seq-2-2-4>make -sj clean.linux-x86
> corvette:~/support/seq-2-2-4>make -sj install.linux-x86
> 2 parsing conflicts.
>  
> But often it fails:
>  
> corvette:~/support/seq-2-2-4>make -sj clean.linux-x86
> corvette:~/support/seq-2-2-4>make -sj install.linux-x86
> ../var_types.c:17:17: fatal error: snl.h: No such file or directory
> #include "snl.h"
>                  ^
> compilation terminated.
> 2 parsing conflicts.
>  
> Running make a second time seems to always allow the build to complete.

There's a dependency rule missing from the src/Makefile, but the rule
gets created in the var_types.d file which is included in subsequent
built attempts. Ben does have some rules in that Makefile and he's
trying to support the different dependency rules in 3.14 vs 3.15, but I
suspect GNUmake on a 20-core box is more cunning than the current rules are.

In Ben's defence it isn't easy to write Makefile rules where a single
command generates more than one file, as seems to be the case with lemon.

- Andrew

-- 
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

Replies:
Re: Problem with parallel make with seq 2.2.4 on Linux Ben Franksen
References:
Problem with parallel make with seq 2.2.4 on Linux Mark Rivers

Navigate by Date:
Prev: Re: Problems with seq 2.2.4 on Windows Andrew Johnson
Next: StreamDevice 2.7.7 won't build with Visual Studio 2010 Mark Rivers
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <20172018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Problem with parallel make with seq 2.2.4 on Linux Mark Rivers
Next: Re: Problem with parallel make with seq 2.2.4 on Linux Ben Franksen
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  <20172018  2019  2020  2021  2022  2023  2024