Re: [AMBER-Developers] Make -j4.

From: Tyler Luchko <>
Date: Sat, 12 Nov 2011 22:32:45 -0500

On 2011-11-12, at 6:15 PM, Ross Walker wrote:

> Hi Tyler,
>>> So it is something in the FFTW build that is stopping make -j4 from
>> working.
>>> Make -j4 inside FFTW manually works so I suspect it is in the
>> building of
>>> Sander.RISM where make sends off one thread to do FFTW while
>> continuing to
>>> compile within src/sander and this leads to the link occurring before
>> the
>>> FFTW compile has completed.
>> I didn't realize the RISM section of the makefile was the problem.
>> I'll look into it now.
> I suspect this will be the first of many problems - I.e. problems lie
> elsewhere as well. E.g. I have seen transient issues with make -j4 with
> qmmm_module.mod not being found. The issue is there are several problems and
> they move around due to machine load etc but the FFTW one seems to be a
> recurring problem so if you can look at it that would be great.

make -j 4 should work now. At least it does for me.


Tyler Luchko
Postdoctoral Associate
Case Group
BioMaPS Institute
Rutgers University
Piscataway, New Jersey

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Received on Sat Nov 12 2011 - 20:00:03 PST
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