On Aug 5, 2010, at 9:59 AM, Matthew Knepley wrote:
On Thu, Aug 5, 2010 at 9:56 AM, Lisandro Dalcin dalcinl at gmail.com wrote:
On 5 August 2010 00:39, Lisandro Dalcin dalcinl at gmail.com wrote:
On 4 August 2010 12:44, Barry Smith bsmith at mcs.anl.gov wrote:
Lisandro,
We would
From: Bas Fagginger Auer b.o.faggingera...@uu.nl
Date: Wed, 4 Aug 2010 15:02:44 +0200
Subject: Mondriaan 3.0 : Sparse Matrix Partitioning Package
Mondriaan 3.0: Sparse matrix partitioning package
We would like to announce the availability of version 3.0 of the
Mondriaan package. Mondriaan can
orderings
might be a big win for LU.
Matt
On Thu, Aug 12, 2010 at 1:38 PM, Barry Smith bsmith at mcs.anl.gov wrote:
From: Bas Fagginger Auer B.O.FaggingerAuer at uu.nl
Date: Wed, 4 Aug 2010 15:02:44 +0200
Subject: Mondriaan 3.0 : Sparse Matrix Partitioning Package
Mondriaan 3.0: Sparse
:Jed Brown jed at 59A2.org
thanks,
Satish
---
asterix:/home/balay/tmp/petsc-devhg log | grep 'user:' | head -100 | sort |
uniq
user:balay at mcs.anl.gov
user:Barry Smith bsmith at mcs.anl.gov
user:Dmitry Karpeev karpeev at mcs.anl.gov
user
Shri,
Since this is development code that only you are working on you can
protect its use by putting a
#requirespackage 'PETSC_USE_DVI'
in the makefile in that directory and if you register the method in
SNESRegisterAll() then protect it with
#if defined(PETSC_USE_DVI)
then define
Folks,
Please find attached an easy proceedings paper on the preliminary work
Victor did this summer on getting PETSc to run on GPUs.
We would appreciate any comments or corrections to Barry, Victor and Matt
at the cc list above.
Thanks!
Barry
Here is the paper.
Barry
On Aug 19, 2010, at 4:14 PM, Barry Smith wrote:
Folks,
Please find attached an easy proceedings paper on the preliminary work
Victor did this summer on getting PETSc to run on GPUs.
We would appreciate any comments or corrections to Barry
variables with real upper and lower bounds don't make sense to me and i don't
know of any actual problems which have or need complex bounds.
- Barry Smith bsmith at mcs.anl.gov wrote:
Shri,
Since this is development code that only you are working on you can
protect its use by putting
On Aug 19, 2010, at 6:59 PM, Lisandro Dalcin wrote:
I bet all involved people is aware of most of this issues, but just in case.
* MatAssemblyEnd_SeqAIJCUDA: What about mode=MAT_FLUSH_ASSEMBLY?
What's the point of coping to the GPU?
Fixed.
* MatAssemblyEnd_SeqAIJCUDA: the 'tempvec'
On Aug 23, 2010, at 2:31 PM, Anush Krishnan wrote:
Hi,
I was trying to compile and run the example file
$PETSC_DIR/src/ksp/pc/examples/tutorials/ex3.c, which demonstrates PETSc's
preconditioned conjugate gradient solver for a system of linear equations.
After compiling, running make
Please send your configure.log to petsc-maint
On Aug 23, 2010, at 11:17 PM, Anush Krishnan anush at bu.edu wrote:
Message: 6
Date: Mon, 23 Aug 2010 18:40:34 -0500
From: Barry Smith bsmith at mcs.anl.gov
Subject: Re: [petsc-dev] Problem with conjugate gradient solver
To: For users
1.
1.
I am cc:iing Victor who supposedly wrote the original example.
Barry
Attached is the matrix saved with -mat_view_matlab
On Aug 23, 2010, at 11:17 PM, Anush Krishnan wrote:
Message: 6
Date: Mon, 23 Aug 2010 18:40:34 -0500
From: Barry Smith bsmith at mcs.anl.gov
and not require adding to
configure.
Barry
On Aug 26, 2010, at 4:26 AM, Jed Brown wrote:
On Wed, 25 Aug 2010 18:19:50 -0500, Barry Smith bsmith at mcs.anl.gov wrote:
libfast in: /users/nyevik/MANUALBUILD/petsc-3.1-p4/src/mat/impls/aij/seq
inode.c: In function 'PetscErrorCode
I have made a slight change to DAVecGetArrayF90() the arrays are now indexed
from xs:xs+xl-1 instead of xs+1:xs+xl
Barry
On Aug 27, 2010, at 8:13 AM, Aron Ahmadia wrote:
Not to mention the various Get routines that are actually used to create
things, such as DAGetMatrix. Still, the idea of a pool of work vectors makes
sense, I was just trying to wrap my head around the actual use for those
routines.
On Aug 27, 2010, at 8:47 AM, Jed Brown wrote:
On Fri, 27 Aug 2010 08:27:22 -0500, Barry Smith bsmith at mcs.anl.gov wrote:
It would actually be nice if we made DACreateGlobal/LocalVector()
so light-weight that it could be used for work vectors (instead of
needing a different set of light
Jed,
You are certainly welcome to add it.
Barry
On Aug 27, 2010, at 11:59 AM, Jed Brown wrote:
C99 mandates __func__, but unfortunately C++ and earlier C standards
mandate no such thing. Even so, most compilers support __FUNCTION__,
__PRETTY_FUNCTION__ (distinct in C++), or
Hmmm,
petscda.h:EXTERN PetscErrorCode PETSCDM_DLLEXPORT
DMGetColoring(DM,ISColoringType,const MatType,ISColoring*);
petscda.h:EXTERN PetscErrorCode PETSCDM_DLLEXPORT DMGetMatrix(DM, const
MatType,Mat*);
petscda.h:EXTERN PetscErrorCode PETSCDM_DLLEXPORT
You can run, for example, src/snes/examples/tutorials ex19 with the options
-pc_type jacobi -dmmg_nlevels 5 -da_vec_type cuda -da_mat_type aijcuda and
run without those last two options to NOT use the GPU and compare the results
with -log_summary. We'd be interesting in seeing those
-bounces at mcs.anl.gov [mailto:petsc-dev-bounces at
mcs.anl.gov] On Behalf Of Barry Smith
Sent: Friday, August 27, 2010 1:13 PM
To: For users of the development version of PETSc
Subject: Re: [petsc-dev] Problem with petsc-dev
You can run, for example, src/snes/examples/tutorials ex19
PETSc-dev folks,
Please prepend all messages to petsc-dev that involve GPUs with [GPU] so
they can be easily filtered.
Keita,
To run src/ksp/ksp/examples/tutorials/ex2.c with CUDA you need the flag
-vec_type cuda
Note also that this example is fine for simple ONE
] On Behalf Of Barry Smith
Sent: Friday, August 27, 2010 2:15 PM
To: For users of the development version of PETSc
Subject: [petsc-dev] [GPU] Performance on Fermi
PETSc-dev folks,
Please prepend all messages to petsc-dev that involve GPUs with [GPU] so
they can be easily filtered
On Aug 27, 2010, at 4:34 PM, Keita Teranishi wrote:
Jed,
I usually manually edit petscconf.h and petscvariables to change the
installation configurations for Cray XT/XE. The problem is configure script
of PETSc picks up wrong variables and #define macros because the OS and
library
:
On 27 August 2010 17:54, Jed Brown jed at 59a2.org wrote:
On Fri, 27 Aug 2010 12:45:46 -0500, Barry Smith bsmith at mcs.anl.gov
wrote:
Jed,
You are certainly welcome to add it.
fdbdc93647ff
This just writes inconsistencies via PetscErrorPrintf, only in debug
mode. I think
On Aug 28, 2010, at 6:25 PM, Satish Balay wrote:
On Fri, 27 Aug 2010, Jed Brown wrote:
On Fri, 27 Aug 2010 12:45:46 -0500, Barry Smith bsmith at mcs.anl.gov
wrote:
Jed,
You are certainly welcome to add it.
fdbdc93647ff
This just writes inconsistencies via PetscErrorPrintf
On Aug 28, 2010, at 7:57 PM, Satish Balay wrote:
The addition in my sugestion was to have a configure option to
enable-disable PetscCheck__FUNCT__()
It is fine to have that configure option. My concern is the default, if we
default off then no one will remember to turn it on and
On Aug 29, 2010, at 2:45 PM, Jed Brown wrote:
PETSc uses the -display option differently from the DISPLAY environment
variable. In particular, it prepends the hostname when DISPLAY starts
with :.
ierr =
PetscOptionsGetString(PETSC_NULL,-display,PetscDisplay,256,flag);CHKERRQ(ierr);
Please run with the options ./ex19 -da_vec_type seqcuda -da_mat_type
seqaijcuda -pc_type none -dmmg_nlevels 1 -da_grid_x 100 -da_grid_y 100
-log_summary -mat_no_inode -preload off -cuda_synchronize
On Aug 31, 2010, at 11:45 AM, Keita Teranishi wrote:
Hi PETSc Developer team,
I have
On Aug 31, 2010, at 1:07 PM, Jed Brown wrote:
On Tue, 31 Aug 2010 11:21:02 -0300, Lisandro Dalcin dalcinl at gmail.com
wrote:
Calling VecGetArray multiple times on the same vec seems to work (at
least for native vectors). However, in VecSeq impl there is code to
prevent such usage. What's
0.0e+00 0.0e+00
0.0e+00 0 0 0 0 0 0 0 0 0 0 2940
From: petsc-dev-bounces at mcs.anl.gov [mailto:petsc-dev-bounces at
mcs.anl.gov] On Behalf Of Barry Smith
Sent
?
Thanks,
Keita Teranishi
Scientific Library Group
Cray, Inc.
keita at cray.com
From: petsc-dev-bounces at mcs.anl.gov [mailto:petsc-dev-bounces at
mcs.anl.gov] On Behalf Of Barry Smith
Sent: Tuesday, August 31, 2010 1:38
Keita Teranishi
Scientific Library Group
Cray, Inc.
keita at cray.com
From: petsc-dev-bounces at mcs.anl.gov [mailto:petsc-dev-bounces at
mcs.anl.gov] On Behalf Of Barry Smith
Sent: Tuesday, August 31, 2010 2:03 PM
On Aug 31, 2010, at 3:36 PM, Matthew Knepley wrote:
On Tue, Aug 31, 2010 at 7:17 PM, Barry Smith bsmith at mcs.anl.gov wrote:
On Aug 31, 2010, at 3:14 PM, Keita Teranishi wrote:
Does this PETSc use timers from CUDA?
No, didn't know there were timers in CUDA.
Yes, I use them when
On Oct 2, 2009, at 9:38 AM, Matthew Knepley wrote:
On Fri, Oct 2, 2009 at 9:11 AM, Richard Tran Mills rmills at
climate.ornl.gov
wrote:
BuildSystem Folks (Matt, mainly),
This is not really a problem for me since I know about this behavior
already, but I note that it can cause
Anybody touch the dense matrices recently to cause these problems?
testexamples_C in: /Users/barrysmith/Src/petsc-dev/src/mat/examples/
tests
4,5c4,5
Norm of error for LU 1.e-12
Norm of error for LU 1.e-12
---
Norm of error for LU 10.4403
Norm of error for LU 10.4403
Possible
On Oct 7, 2009, at 9:34 AM, Stephan Kramer wrote:
think I found a nasty bug in the tfs preconditioner/solver. The
first symptons were MPI complaints about corrupted messages in
MPI_WAIT on line 1552 of ksp/pc/impls/tfs/gs.c (the file is the same
in petsc-dev and 3.0.0). Valgrind
On Oct 7, 2009, at 12:50 PM, Jed Brown wrote:
On Wed, Oct 7, 2009 at 19:39, Barry Smith bsmith at mcs.anl.gov wrote:
I don't think that it is the TFS solver itself that significantly
improved.
I think it is the new/different algorithms they use in Nek that are
better.
Ah, thanks
I assume this is completely portable since it is in a few of the
makefiles?
Barry
In my arch-gnu/include/petscconf.h
#ifndef PETSC_ARCH_NAME
#define PETSC_ARCH_NAME arch-gnu
#endif
#ifndef PETSC_ARCH
#define PETSC_ARCH darwin9
#endif
Meanwhile in all the makefiles PETSC_ARCH is arch-gnu
I am endeavoring to fix this, but it might break something for a
while.
It is fine with me to switch the infrastructure to use a PetscReal
instead of integer
Barry
On Oct 16, 2009, at 5:02 AM, Jed Brown wrote:
I sometimes want to slow down animation with a small problem size and
-draw_pause is generally does what I want, but it can only take
integer
Here's the deal. In parallel PETSc does not use a single CSR
matrix on each process to hold the MPIAIJ matrix. Hence if you store
the matrix on a process as a single CSR matrix then it has to be
copied into the PETSc datastructure. MatMPIAIJSetPreallocationCSR()
does the copy very
nonzero structure stays the same then yes you need
call MatMPIAIJSetPreallocationCSR() only once and use the
MatSetValues() calls each Newton step to update the nonzeros.
Barry
Chris
On Oct 20, 2009, at 8:32 PM, Barry Smith wrote:
Here's the deal. In parallel PETSc does not use
PetscRandomGetValueReal() and PetscRandomGetValueImaginary() have
no mention in their manual pages what they do?
Do they return random numbers with a zero imaginary part and a zero
real part respectively? Manual page does not see.
Also PetscRandomGetValue() does not have .seealso to these
get home on Sunday.
Matt
On Fri, Oct 23, 2009 at 2:07 PM, Barry Smith bsmith at mcs.anl.gov
wrote:
PetscRandomGetValueReal() and PetscRandomGetValueImaginary() have
no mention in their manual pages what they do?
Do they return random numbers with a zero imaginary part and a zero
On Oct 23, 2009, at 2:33 PM, Matthew Knepley wrote:
On Fri, Oct 23, 2009 at 2:31 PM, Barry Smith bsmith at mcs.anl.gov
wrote:
I thought I was working on builder.py? Crude, yes, but the way I
want it :-).
Were you adding code to builder.py?
Yep. I am all for this. However, two
There is a lack of symmetry in the meaning of
PetscRandomGetValueReal() and PetscRandomGetValueImaginary(). The real
returns a PetscReal with a random value in it. The imaginary returns a
complex number with zero real part and some imaginary part.
I have changed
The raw output PETSc's nightly test runs are now finally available
online at, see the bottom of
http://www.mcs.anl.gov/petsc/petsc-as/developers/index.html
for access location.
What we need is ideas (and python scripts that implement these
ideas) for displaying the information in
PetscMap is a strange beast in PETSc.
1) it is not a PetscObject (that is it has no PETSc header)
2) it is used as a PetscMap* instead of PetscMap like most objects
3) it does not have a PetscMapCreate() instead it has a
PetscMapInitialize() which is like a create except it does not malloc
It can be moved over.
Barry
On Oct 28, 2009, at 12:32 PM, Jed Brown wrote:
I don't think external projects should have to include ../src/
whatever
because this doesn't work if PETSc is installed and it's a screwy
API
(even if most users don't see it).
Any objections to this?
We do do this for Mac (libpetsc*.dylib) and I think it mostly
works. But I am not aware of anyone doing this intentionally for PETSc
on Linux (though I think it is a good idea if it can be done).
Bartry
On Oct 28, 2009, at 4:27 PM, Matthew Knepley wrote:
On Wed, Oct 28, 2009 at
On Oct 28, 2009, at 4:37 PM, Jed Brown wrote:
Barry Smith wrote:
We do do this for Mac (libpetsc*.dylib) and I think it mostly works.
But I am not aware of anyone doing this intentionally for PETSc on
Linux
(though I think it is a good idea if it can be done).
It has been working
On my Mac
bsmith-laptop:~/Src/petsc-dev] barrysmith% echo $DISPLAY
/tmp/launch-r289TD/:0
I don't seem to have a problem with X when I change my IP address. I
carry my laptop around open it and use X and it pretty much always
works.
Barry
On Oct 28, 2009, at 8:02 PM, Satish Balay
/msg00073.html
Satish
On Wed, 28 Oct 2009, Barry Smith wrote:
On my Mac
bsmith-laptop:~/Src/petsc-dev] barrysmith% echo $DISPLAY
/tmp/launch-r289TD/:0
I don't seem to have a problem with X when I change my IP address.
I carry my
laptop around open it and use X and it pretty much always
at gmail.com
wrote:
I wanted that 10 years ago.
Matt
On Tue, Oct 27, 2009 at 4:37 PM, Barry Smith bsmith at mcs.anl.gov
wrote:
PetscMap is a strange beast in PETSc.
1) it is not a PetscObject (that is it has no PETSc header)
2) it is used as a PetscMap* instead of PetscMap like most
counts to allocate
storage in PETSC matrices, just don't underestimate.
Mark
On Oct 21, 2009, at 9:16 AM, Barry Smith wrote:
On Oct 20, 2009, at 10:13 PM, Chris Kees wrote:
Thanks. Just to make sure I'm following, when I create the matrix I
do:
MatCreate(PETSC_COMM_WORLD,self-m
On Oct 29, 2009, at 3:52 PM, Lisandro Dalcin wrote:
On Thu, Oct 29, 2009 at 4:45 PM, Jed Brown jed at 59a2.org wrote:
I realize that the real problem here was OpenCV's libml and the fact
that linkers don't resolve symbols by starting with the most recent
-L
path [*], but we should at
3.936838941525e-01 true resid norm
1.050257318153e+01 ||Ae||/||Ax|| 9.881970495395e-01
2 KSP preconditioned resid norm 7.332823321496e-14 true resid norm
2.408053447453e-13 ||Ae||/||Ax|| 2.265760276816e-14
On Oct 29, 2009, at 3:56 PM, Barry Smith wrote:
Hmm, this should not happen. The matrix
See for example
http://ftp.mcs.anl.gov/pub/petsc/nightlylogs/examples_arch-linux-gcc-pgf90_grind.log
search for PCSetUp_FieldSplit().
Please fix ASAP.
Thanks.
Barry
And remember before pushing you should run make alltests to make
sure you haven't introduced problems.
? It bombs in
MatGetSubMatrix(), and
this
had an API change. The
last change in fieldsplit.c is in July, by Jed.
BTW, the #arg is wrong, it should be #5...
Matt
On Wed, Nov 11, 2009 at 5:16 PM, Barry Smith
bsmith at mcs.anl.gov wrote:
See for example
Satish,
gcc supports the option -malign-double on some systems. Please
add it to the flags that configure checks for c and c++ and have it
added if it exists.
Thanks
Barry
Great, thanks, Barry
On Nov 11, 2009, at 9:14 PM, Satish Balay wrote:
On Wed, 11 Nov 2009, Barry Smith wrote:
If we were smart we would keep the results of each nights nightly
builds and
then we could easily check what DAY things broke. Satish please
have it save
the old days
BlueGene doesn't like 4 byte aligned doubles and sends a bus
error after a certain number are generated, Thus I was motivated to
make PETSc a bit clearer on that.
On Nov 12, 2009, at 9:29 AM, Lisandro Dalcin wrote:
On Wed, Nov 11, 2009 at 11:02 PM, Barry Smith bsmith at mcs.anl.gov
wrote
On Nov 14, 2009, at 11:28 AM, Jed Brown wrote:
Barry Smith wrote:
Good point, I have removed it.
I put it in because I wanted an easy way to test that PETSc double
arrays are always 8 byte aligned (and the unaligned struct values
were
giving me lots of false alarms).
A related
On Nov 14, 2009, at 4:01 PM, Lisandro Dalcin wrote:
On Fri, Nov 13, 2009 at 11:09 PM, Barry Smith bsmith at mcs.anl.gov
wrote:
Good point, I have removed it.
I put it in because I wanted an easy way to test that PETSc
double arrays
are always 8 byte aligned (and the unaligned
require 16 byte alignment
everywhere? But is that a desirable?
Barry
On Nov 14, 2009, at 12:43 PM, Jed Brown wrote:
Barry Smith wrote:
On Nov 14, 2009, at 11:28 AM, Jed Brown wrote:
Barry Smith wrote:
Good point, I have removed it.
I put it in because I wanted an easy way to test
, Jed Brown wrote:
Barry Smith wrote:
I do not know a way to generate unique MPI-comm-id's. Any thoughts?
Some feature of MPI I don't know?
This seems very hard. One could (the first time PETSc sees a
communicator) hash the hostname+pid of every process on the
communicator, start a counter
would argue yes. Not only is there the issue of improved
performance of the malloc but it also is a nice way to have clarity in
the code as to what allocated arrays are associated together.
Barry
I'm not sure..
Satish
On Mon, 16 Nov 2009, Jed Brown wrote:
Barry Smith wrote
What about have configure look for uintptr_t if it does not exist
then have configure check if unsigned long long is large enough, if
not try size_t otherwise barf?
Barry
On Nov 16, 2009, at 1:55 PM, Jed Brown wrote:
Barry Smith wrote:
Jed,
Seems ok to me. Feel free
On Nov 16, 2009, at 2:50 PM, Jed Brown wrote:
so. BTW, should we put PAPI support into PETSc, it no longer needs
kernel patches with 2.6.31.
The basics are there in config/PETSc/packages/PAPI.py and
initialization in plog.c and eventLog.c It would be good to add counts
for cache
Thanks
On Nov 17, 2009, at 1:08 PM, Jed Brown wrote:
I think this is complete.
http://petsc.cs.iit.edu/petsc/petsc-dev/rev/a36906938641
This was my first time messing with configure. It works in all
cases I
have tested, let me know if I screwed up. The default alignment is
now
On Nov 17, 2009, at 3:13 PM, Jed Brown wrote:
Barry Smith wrote:
On Nov 16, 2009, at 2:50 PM, Jed Brown wrote:
so. BTW, should we put PAPI support into PETSc, it no longer needs
kernel patches with 2.6.31.
The basics are there in config/PETSc/packages/PAPI.py and
This file does
On Nov 17, 2009, at 5:08 PM, Jed Brown wrote:
Lisandro Dalcin wrote:
On Mon, Nov 16, 2009 at 4:04 PM, Barry Smith bsmith at mcs.anl.gov
wrote:
Ok, we could just put the counter into the MPI attribute and
then just
have uniqueness of the names within each communicator. This would
When starting to code PETSc 2.0 I introduced two nasty habits
1) since we called malloc() directly and some mallocs don't like
allocating zero length I would often allocate 1 additional space to
make sure I did not request a zero size. Giving things like
On Nov 18, 2009, at 8:52 AM, Jed Brown wrote:
http://petsc.cs.iit.edu/petsc/petsc-dev/rev/ecbd2dcad71a
Note that there are a couple other places where keyvals are created
(with no way to free them). Does it make sense to put those fields
into this one?
Is there a reason that
Lisandro,
That change will certainly NOT be reverted. PETSC_ARCH_NAME!
what the heck kind of variable name is that?
I need to understand the reason for PETSC_ARCH_NAME, then we can
come up with some solution. What is the difference between
PETSC_ARCH_NAME and PETSC_ARCH? Is
way
of supporting that case.
Jose
On 25/11/2009, Barry Smith wrote:
Lisandro,
That change will certainly NOT be reverted. PETSC_ARCH_NAME!
what the heck kind of variable name is that?
I need to understand the reason for PETSC_ARCH_NAME, then we can
come up with some
On Nov 25, 2009, at 1:03 PM, Lisandro Dalcin wrote:
On Wed, Nov 25, 2009 at 3:19 PM, Barry Smith bsmith at mcs.anl.gov
wrote:
Lisandro,
That change will certainly NOT be reverted. PETSC_ARCH_NAME!
what the
heck kind of variable name is that?
I agree the name could be messy
On Nov 27, 2009, at 6:04 PM, Lisandro Dalcin wrote:
On Fri, Nov 27, 2009 at 8:52 PM, Satish Balay balay at mcs.anl.gov
wrote:
On Fri, 27 Nov 2009, Satish Balay wrote:
This tread got long enough. Let's stop here, please. All us have more
important matters to spend our time. I think I'll
I have made some changes so that when using the --prefix option
there is no need to set PETSC_DIR or PETSC_ARCH.
./configure --prefix=... other options
make
make install
Barry
On Nov 27, 2009, at 5:47 PM, Satish Balay wrote:
On Fri, 27 Nov 2009, Barry Smith wrote:
How does
Lisandro has pointed out to me several times that the variable
name PETSC_ARCH can be confusing; some people may think it is related
to the architecture of the machine and don't understand that it is an
arbitrary name that the user can make up. He suggested changing it to
PETSC_CONF
PM, Matthew Knepley wrote:
I see the point, but this is one of the oldest parts of PETSc, and I
am hesitant to change one
arbitrary name to another without a more convincing reason.
Matt
On Mon, Nov 30, 2009 at 2:17 PM, Barry Smith bsmith at mcs.anl.gov
wrote:
Lisandro has
/
On Nov 30, 2009, at 3:43 PM, Matthew Knepley wrote:
On Mon, Nov 30, 2009 at 3:38 PM, Barry Smith bsmith at mcs.anl.gov
wrote:
I guess the argument is that on occasion in the future a certain
number of people will misinterpret the meaning of PETSC_ARCH
frustrating them and us; the number
Boyana,
We are going to stop using make before we ever start using GNU
make features :-)
Barry
On Nov 30, 2009, at 4:23 PM, Boyana Norris wrote:
On Nov 30, 2009, at 3:59 PM, Barry Smith wrote:
On Nov 30, 2009, at 3:51 PM, Boyana Norris wrote:
Why not recognize both? It's
PM, Barry Smith wrote:
Boyana,
We are going to stop using make before we ever start using GNU
make features :-)
Barry
On Nov 30, 2009, at 4:23 PM, Boyana Norris wrote:
On Nov 30, 2009, at 3:59 PM, Barry Smith wrote:
On Nov 30, 2009, at 3:51 PM, Boyana Norris wrote:
Why
This is tricky because some C/C++ compilers long double uses 128
bits of space but actually (on Intel) only uses 80 of the bits (those
are the bits that floating point unit handles). So you do not really
get 128 bits. Also MPI may not properly handle the 128 bit doubles.
I am
The cblaslapack binding does not, in general, match any particular
Fortran compiler, thus calling cblaslapack from some Fortran compiler
might not work. To prevent this situation we have the check that you
hit below.
It would be good to figure out why gfortran could not handle the
I don't think square has anything to do with it. It depends on
whether all the entries in y[i] are hit or if some are skipped, this
depends exactly on the scatter.
The first time the mult is called, duplicate x and y
temporarility, fill a xdup with all 1s. Do the scatter, locate
On Mar 30, 2009, at 7:48 PM, Matthew Knepley wrote:
On Mon, Mar 30, 2009 at 6:13 PM, Barry Smith bsmith at mcs.anl.gov
wrote:
I don't think square has anything to do with it. It depends on
whether all the entries in y[i] are hit or if some are skipped, this
depends exactly
I just used a link list to support flexibly adding more fields
without needing to allocate a new array and copying over the old values.
If array storage makes the implementation easier that is fine with
me. Since there are not many blocks why bother with CSR to store the
(say 5 by 5 = 25
Recently people have been changing calling sequences of some PETSc
routines (which is fine) but NOT changing all the examples that use
the API (which is not fine). Thus breaking the tests. Whenever you
change an API please check all the examples (with etags this is
trivial) and update
On Jul 17, 2009, at 1:59 PM, Jed Brown wrote:
I was responsible for some of these failures, they are working now.
Thanks
I see differences in the last digit for a lot of tests which
contaminates the output. The use of -xxx_monitor_short should take
care
of most architecture
Tony,
I will not be able to make it this year and I believe Matt is also
previously booked. I'm forwarding this to the wider development team
to see if we have any volunteers. If a non-ANL person presents can you
pay for travel and expenses?
Barry
On Jul 17, 2009, at 12:36
I want to use may mail reader as my front end
Barry
It happens to be Mail.app but that is not important
On Jul 20, 2009, at 2:41 PM, Andy Ray Terrel wrote:
This is what irc is for and why lots of open source codes are on
freenode servers.
http://freenode.net/
Then you can pick
Sorry, fixed.
Say, isn't it about time we abolish PetscTruth? Are the C and C++
bool compatible with each other and compatible with Fortran 90's
logical?
Barry
On Jul 20, 2009, at 12:51 PM, Lisandro Dalcin wrote:
Barry, this time you are the guy to blame ;-) (at least for the
On Jul 20, 2009, at 3:35 PM, Lisandro Dalcin wrote:
On Mon, Jul 20, 2009 at 5:01 PM, Barry Smithbsmith at mcs.anl.gov
wrote:
Sorry, fixed.
Say, isn't it about time we abolish PetscTruth? Are the C and C++
bool
compatible with each other and compatible with Fortran 90's logical?
is
to save the mf flags in the SNES data structure and call
SNESSetUpMatrixFree_Private()
as it use to be called in SNESSetUp(). Perhaps there is a problem with
that fix I do not know about.
Barry
Begin forwarded message:
From: Barry Smith bsmith at mcs.anl.gov
Date: May 6, 2009 3:25:43
that does not follow the rules.
Begin forwarded message:
From: Barry Smith bsmith at mcs.anl.gov
Date: May 6, 2009 3:25:43 PM CDT
To: For users of the development version of PETSc petsc-dev at mcs.anl.gov
Subject: Re: SNESSetUp() and matrix-free options
Lisandro,
The checking
My eventual goal is to remove all hidden MatCreate()'s and
instead have Mat's passed in
as arguments. So MatLoad() would take a Mat as an argument, as would
DAGetMatrix()
One could then set as much or a as little as a Mat as they like before
passing it in.
They could set the type, they
On Jul 21, 2009, at 7:00 PM, Jed Brown wrote:
Barry Smith wrote:
My eventual goal is to remove all hidden MatCreate()'s and
instead have Mat's passed in as arguments. So MatLoad() would take a
Mat as an argument, as would DAGetMatrix() One could then set as much
or a as little as a Mat
On Jul 21, 2009, at 7:47 PM, Jed Brown wrote:
Barry Smith wrote:
Could you call MatSetFromOptions() twice, once before the
DAGetMatrix() call to set the type and then after the DAGetMatrix()
to
set particular options for what you set?
This is okay as long as we don't get more global
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