OK, thank you. I built on Sierra. I'll have to find an El Cap machine to test
on to see what Apple changed in the Accelerate framework.
> On Feb 6, 2017, at 4:05 PM, Adrian Jacobo <ajac...@mail.rockefeller.edu>
> wrote:
>
> Jon
>
> Here is the error message I get when I try to run the Anaconda installation
> of FiPy using Trilinos on OsX. I'm using El Capitan:
>
> Traceback (most recent call last):
> File "CH_SqMesh.py", line 8, in <module>
> import fipy as fp
> File
> "/Users/ajacobo/anaconda/envs/MYFIPYENV/lib/python2.7/site-packages/fipy/__init__.py",
> line 45, in <module>
> from fipy.boundaryConditions import *
> File
> "/Users/ajacobo/anaconda/envs/MYFIPYENV/lib/python2.7/site-packages/fipy/boundaryConditions/__init__.py",
> line 2, in <module>
> from fipy.boundaryConditions.fixedFlux import *
> File
> "/Users/ajacobo/anaconda/envs/MYFIPYENV/lib/python2.7/site-packages/fipy/boundaryConditions/fixedFlux.py",
> line 38, in <module>
> from fipy.tools import numerix
> File
> "/Users/ajacobo/anaconda/envs/MYFIPYENV/lib/python2.7/site-packages/fipy/tools/__init__.py",
> line 85, in <module>
> serial, parallel = serialComm, parallelComm = _getComms()
> File
> "/Users/ajacobo/anaconda/envs/MYFIPYENV/lib/python2.7/site-packages/fipy/tools/__init__.py",
> line 72, in _getComms
> serialComm, parallelComm = _parallelImport()
> File
> "/Users/ajacobo/anaconda/envs/MYFIPYENV/lib/python2.7/site-packages/fipy/tools/__init__.py",
> line 43, in _parallelImport
> from PyTrilinos import Epetra
> File
> "/Users/ajacobo/anaconda/envs/MYFIPYENV/lib/python2.7/site-packages/PyTrilinos/Epetra.py",
> line 78, in <module>
> _Epetra = swig_import_helper()
> File
> "/Users/ajacobo/anaconda/envs/MYFIPYENV/lib/python2.7/site-packages/PyTrilinos/Epetra.py",
> line 74, in swig_import_helper
> _mod = imp.load_module('_Epetra', fp, pathname, description)
> ImportError:
> dlopen(/Users/ajacobo/anaconda/envs/MYFIPYENV/lib/python2.7/site-packages/PyTrilinos/_Epetra.so,
> 258): Symbol not found: _cgesv_
> Referenced from:
> /Users/ajacobo/anaconda/envs/MYFIPYENV/lib/python2.7/site-packages/PyTrilinos/../../..//libteuchosnumerics.11.dylib
> Expected in:
> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
> in
> /Users/ajacobo/anaconda/envs/MYFIPYENV/lib/python2.7/site-packages/PyTrilinos/../../..//libteuchosnumerics.11.dylib
>
> Adrian.
>> Adrian -
>>
>> You're running examples.cahnHilliard.mesh2DCoupled? There are a couple of
>> issues with the example as posted:
>>
>> - There is a sign error in this example. It was fixed over a year ago, but
>> never merged to master or released as a tarball. You can run our develop
>> branch, or manually apply the changes at
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_usnistgov_fipy_commit_8a1f81da5a3af6774c7803aed98aa38398904492&d=DwICAg&c=JeTkUgVztGMmhKYjxsy2rfoWYibK1YmxXez1G3oNStg&r=L6ffpm32hXcrNVgPrCUpE1ETAP0ihkpRJw_LGmJrntY&m=b5PUXJNUOd4hCWOREzB7y5TD3kgcq4MbScDfT6RJCqM&s=m-lETtFeGzLLIvB2bk9ZYJYqPBX5LlUMbcEvFKvYxmE&e=
>>
>>
>> - The system domain in that example is very small. Parallelizing it will
>> result in lots of overlapping cells, so won't scale well.
>>
>> - If you make the system bigger, you'll quickly find that the default
>> Trilinos solver/preconditioner for this problem (GMRES with
>> dynamic-domain-decomposition) doesn't converge. No errors get generated, but
>> the solver runs to maximum iterations and the solution doesn't change. If
>> you instantiate a GMRES solver with a Jacobi preconditioner, this problem
>> should be resolved.
>>
>> Hopefully this combination of changes will show some parallel speedup.
>>
>> I'm presently (haphazardly) doing some solver benchmarking and am working my
>> way toward both parallel and coupled-CH benchmarking, which I'll then
>> incorporate in the documentation and/or in the default settings. It's taking
>> me awhile to get there, though.
>>
>> As far as anaconda, when did you try the Mac OS X installation? Those
>> instructions were updated about three weeks ago and work for me (Mac is my
>> primary machine) and worked for a couple of people I was at a workshop with.
>> If you've done this since then, I'd appreciate knowing what doesn't work.
>>
>> - Jon
>>
>
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