Re: [Plplot-devel] pkg-config bug / library flags

[Alan W. I. <ir...@be...>]

On 2009-05-12 08:01+0200 Werner Smekal wrote:

> Hi,
>
> On 11.05.2009, at 19:19, Alan W. Irwin wrote:
>> However, I really do hope you and Werner explore that territory soon.  Once
>> set up, it should be a much easier environment for you guys to work in
>> because everything is located in consistent locations in the install tree
>> rather than scattered all over the build tree.  Also, "make test" runs
>> essentially the same scripts as ctest in the build tree so not too much
>> extra effort (you need access to make, pkg-config, and bash) should be
>> required to get things working for you in the installed examples tree.
>
> I actually never use the install tree to test plplot. I do/test everything in 
> the build tree especially on Windows.

I do both, but my tendency is to use the install tree a lot more, because of
the substantial (factor of two gain in speed for my two-CPU box) advantage
of a parallel test infrastructure there that cannot be used with the ctest
method; ctest is unaware of the dependencies between tests, and just does
the tests in sequence leaving all but one of the CPUs of a multiple CPU box
completely idle.

N.B. We could also take advantage of the parallel testing possiblity in the
build tree if we dropped ctest altogether and instead simply set up our
build-tree tests as custom targets with proper dependencies between them. So
if you have a multiple cpu box, but don't want to bother with the install
tree, then this parallel testing possibility for the build tree would be a
good area to work on to allow taking proper advantage of those multiple cpu's
for build-tree testing.

Of course the above "parallel" testing considerations for both install tree
and build tree are only relevant on Windows if there is a Windows CMake
generator that allows parallel commands to be executed similar to the GNU
make -j option.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
__________________________

Linux-powered Science
__________________________