[petsc-users] Eigenvalue solver method in Petsc

[Barry Smith]

On Mar 17, 2013, at 5:37 PM, Satish Balay <balay at mcs.anl.gov> wrote:

> On Sun, 17 Mar 2013, Barry Smith wrote:
> 
>> 
>> On Mar 17, 2013, at 3:51 PM, Satish Balay <balay at mcs.anl.gov> wrote:
>> 
>>> On Sun, 17 Mar 2013, Sonya Blade wrote:
>>> 
>>>>>>> Cygwin is required to build PETSc, but not to use it.
>>>>>> How about the MSys interface, which I've already installed.
>>>>> 
>>>>> Not currently, as far as I know.
>>>> 
>>>>> whats your compiler requirement? And why?
>>>> I use gfortran which ships with MinGW and with Msys I feel more
>>>> comfortable.
>>> 
>>> Are you looking at sequential use of PETSc - or parallel? I see mpich
>>> doesn't work with msys/mingw.
>> 
>>   And why not.
> 
> Sorry - forgot to post this link.
> http://lists.mcs.anl.gov/pipermail/mpich-discuss/2010-July/007458.html
> 
>> It is far more natural than cygwin.
> 
> How so? Even python [which is now considered a universal requirement?] doesn't compile on it.

  Why compile python? Windows already has a perfectly good python to use.

> 
> Satish
> 
>> 
>>> 
>>> You can try an install of petsc with msys - and see if it works. If not send
>>> us logs at petsc-maint.
>>> 
>>> [its possible things won't work - and you would have to use
>>> cygwin/gfortran. Presumably it shouldn't conflict with your msys
>>> install]
>>> 
>>> Satish
>> 
>> 
>