Do you understand the different between a Fortran procedure/subroutine and a variable value? You cannot set an MPI communicator equal to a subroutine. That makes no sense and the compiler is rightfully complaining about it. Jeff On Mon, Jul 8, 2013 at 11:32 AM, Reem Alraddadi <[email protected]> wrote:
Hi Wesley,
How could I do that? as I read in the internet. I have to set: include "mpif.h" Call MPI_COMM_FREE
I found where I can set that in FLASH code ( I have attached the file) So I set: integer, parameter :: FLASH_COMM = MPI_COMM_FREE but I got an error when I compile the code:
Included at Driver_abortFlash.F90:34:
integer, parameter :: FLASH_COMM = MPI_COMM_FREE 1 Error: Symbol 'flash_comm' at (1) already has basic type of INTEGER make: *** [Driver_abortFlash.o] Error 1
the code used MPI_COMM_WORLD. So is there a way to fix that?
Thanks, Reem
Date: Mon, 8 Jul 2013 10:25:38 -0500 From: Wesley Bland <[email protected]> To: [email protected] Subject: Re: [mpich-discuss] discuss Digest, Vol 9, Issue 13 Message-ID: <[email protected]> Content-Type: text/plain; charset="iso-8859-1"
That's the correct way to set that environment variable, but I would have to agree with Pavan here. If you're running into the cap on context id's (especially with so few processes) it would seem that you're creating a lot of communicators that you probably don't need. Are you sure that you're freeing them correctly after use?
Wesley
On Jul 8, 2013, at 10:05 AM, Reem Alraddadi <[email protected]> wrote:
Hi Wesley. I wrote the following: mpirun --np 4 --env MPIR_PARAM_CTXID_EAGER_SIZE 1 ./flash4 but the error still the same. Did I do it in the wrong way??
Thanks, Reem
Message: 5 Date: Mon, 8 Jul 2013 08:14:48 -0500 From: Wesley Bland <[email protected]> To: [email protected] Subject: Re: [mpich-discuss] mpich on Mac os x Message-ID: <[email protected]> Content-Type: text/plain; charset=iso-8859-1
It seems that you're creating more communicators than MPICH can handle. It's possible that you might be able to get around this by setting the environment variable MPIR_PARAM_CTXID_EAGER_SIZE to something smaller than its default (which is 2). That frees up a few more communicators, but there is a pathological case where even with fewer communicators than the max, MPICH won't be able to agree on a new communicator id when needed. Try changing that environment variable and see if that fixes things.
Wesley
On Jul 8, 2013, at 5:33 AM, Reem Alraddadi <[email protected]> wrote:
Hi all, I am using mpich-3.0.4 on Mac os x version 10.7.5 to run FLASH code. It works fine in the beginning of the run and then I got the following error:
Fatal error in MPI_Comm_create: Other MPI error, error stack: MPI_Comm_create(600).................: MPI_Comm_create(comm=0x84000002, group=0xc8001349, new_comm=0x7fff606a8614) failed MPI_Comm_create(577).................: MPIR_Comm_create_intra(241)..........: MPIR_Get_contextid(799)..............: MPIR_Get_contextid_sparse_group(1146): Cannot allocate context ID because of fragmentation (169/2048 free on this process; ignore_id=0) Fatal error in MPI_Comm_create: Other MPI error, error stack: MPI_Comm_create(600).................: MPI_Comm_create(comm=0x84000002, group=0xc80012b6, new_comm=0x7fff670cc614) failed MPI_Comm_create(577).................: MPIR_Comm_create_intra(241)..........: MPIR_Get_contextid(799)..............: MPIR_Get_contextid_sparse_group(1146): Cannot allocate context ID because of fragmentation (316/2048 free on this process; ignore_id=0) Fatal error in MPI_Comm_create: Other MPI error, error stack: MPI_Comm_create(600).................: MPI_Comm_create(comm=0x84000004, group=0xc800000e, new_comm=0x7fff629d5614) failed MPI_Comm_create(577).................: MPIR_Comm_create_intra(241)..........: MPIR_Get_contextid(799)..............: MPIR_Get_contextid_sparse_group(1146): Cannot allocate context ID because of fragmentation (2020/2048 free on this process; ignore_id=0) Fatal error in MPI_Comm_create: Other MPI error, error stack: MPI_Comm_create(600).................: MPI_Comm_create(comm=0x84000002, group=0xc8000020, new_comm=0x7fff639ae614) failed MPI_Comm_create(577).................: MPIR_Comm_create_intra(241)..........: MPIR_Get_contextid(799)..............: MPIR_Get_contextid_sparse_group(1146): Cannot allocate context ID because of fragmentation (2002/2048 free on this process; ignore_id=0
Is there a way to fix that ?
Thanks, Reem
On Mon, Jul 8, 2013 at 9:17 AM, Pavan Balaji <[email protected]> wrote:
Also make sure you are freeing unused communicators.
-- Pavan
On 07/08/2013 08:14 AM, Wesley Bland wrote:
It seems that you're creating more communicators than MPICH can handle. It's possible that you might be able to get around this by setting the environment variable MPIR_PARAM_CTXID_EAGER_SIZE to something smaller than its default (which is 2). That frees up a few more communicators, but there is a pathological case where even with fewer communicators than the max, MPICH won't be able to agree on a new communicator id when needed. Try changing that environment variable and see if that fixes things.
Wesley
On Jul 8, 2013, at 5:33 AM, Reem Alraddadi <[email protected]> wrote:
Hi all, I am using mpich-3.0.4 on Mac os x version 10.7.5 to run FLASH code. It works fine in the beginning of the run and then I got the following error:
Fatal error in MPI_Comm_create: Other MPI error, error stack: MPI_Comm_create(600).................: MPI_Comm_create(comm=0x84000002, group=0xc8001349, new_comm=0x7fff606a8614) failed MPI_Comm_create(577).................: MPIR_Comm_create_intra(241)..........: MPIR_Get_contextid(799)..............: MPIR_Get_contextid_sparse_group(1146): Cannot allocate context ID because of fragmentation (169/2048 free on this process; ignore_id=0) Fatal error in MPI_Comm_create: Other MPI error, error stack: MPI_Comm_create(600).................: MPI_Comm_create(comm=0x84000002, group=0xc80012b6, new_comm=0x7fff670cc614) failed MPI_Comm_create(577).................: MPIR_Comm_create_intra(241)..........: MPIR_Get_contextid(799)..............: MPIR_Get_contextid_sparse_group(1146): Cannot allocate context ID because of fragmentation (316/2048 free on this process; ignore_id=0) Fatal error in MPI_Comm_create: Other MPI error, error stack: MPI_Comm_create(600).................: MPI_Comm_create(comm=0x84000004, group=0xc800000e, new_comm=0x7fff629d5614) failed MPI_Comm_create(577).................: MPIR_Comm_create_intra(241)..........: MPIR_Get_contextid(799)..............: MPIR_Get_contextid_sparse_group(1146): Cannot allocate context ID because of fragmentation (2020/2048 free on this process; ignore_id=0) Fatal error in MPI_Comm_create: Other MPI error, error stack: MPI_Comm_create(600).................: MPI_Comm_create(comm=0x84000002, group=0xc8000020, new_comm=0x7fff639ae614) failed MPI_Comm_create(577).................: MPIR_Comm_create_intra(241)..........: MPIR_Get_contextid(799)..............: MPIR_Get_contextid_sparse_group(1146): Cannot allocate context ID because of fragmentation (2002/2048 free on this process; ignore_id=0
Is there a way to fix that ?
Thanks, Reem _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss
_______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss
-- Pavan Balaji http://www.mcs.anl.gov/~balaji _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss
-- Jeff Hammond [email protected]
------------------------------
Message: 3 Date: Mon, 8 Jul 2013 16:39:03 +0100 From: Reem Alraddadi <[email protected]> To: [email protected] Subject: [mpich-discuss] mpich on Mac os x Message-ID:
<CANKsntEJR0b_TA-tbdBO3fOV2O8PkwTG82a718qZPd3FnEBT3w@mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1"
Hi Pavan,
Could you explain more what do you mean by that? I am sorry I am still beginner in MPICH.
Hi Wesley, apologize about my first confused reply I have forgotten to change the subject. However, as I mentioned I wrote the following line:
mpirun --np 4 --env MPIR_PARAM_CTXID_EAGER_SIZE 1 ./flash4
I am wondering if I made any mistake here as the problem is still the same
Thanks, Reem
Message: 1
Date: Mon, 08 Jul 2013 09:17:00 -0500 From: Pavan Balaji <[email protected]> To: [email protected] Subject: Re: [mpich-discuss] mpich on Mac os x Message-ID: <[email protected]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Also make sure you are freeing unused communicators.
-- Pavan
On 07/08/2013 08:14 AM, Wesley Bland wrote:
It seems that you're creating more communicators than MPICH can handle. It's possible that you might be able to get around this by setting the environment variable MPIR_PARAM_CTXID_EAGER_SIZE to something smaller than its default (which is 2). That frees up a few more communicators, but there is a pathological case where even with fewer communicators than the max, MPICH won't be able to agree on a new communicator id when needed. Try changing that environment variable and see if that fixes things.
Wesley
On Jul 8, 2013, at 5:33 AM, Reem Alraddadi <[email protected]> wrote:
Hi all, I am using mpich-3.0.4 on Mac os x version 10.7.5 to run FLASH code. It works fine in the beginning of the run and then I got the following error:
Fatal error in MPI_Comm_create: Other MPI error, error stack: MPI_Comm_create(600).................: MPI_Comm_create(comm=0x84000002, group=0xc8001349, new_comm=0x7fff606a8614) failed MPI_Comm_create(577).................: MPIR_Comm_create_intra(241)..........: MPIR_Get_contextid(799)..............: MPIR_Get_contextid_sparse_group(1146): Cannot allocate context ID because of fragmentation (169/2048 free on this process; ignore_id=0) Fatal error in MPI_Comm_create: Other MPI error, error stack: MPI_Comm_create(600).................: MPI_Comm_create(comm=0x84000002, group=0xc80012b6, new_comm=0x7fff670cc614) failed MPI_Comm_create(577).................: MPIR_Comm_create_intra(241)..........: MPIR_Get_contextid(799)..............: MPIR_Get_contextid_sparse_group(1146): Cannot allocate context ID because of fragmentation (316/2048 free on this process; ignore_id=0) Fatal error in MPI_Comm_create: Other MPI error, error stack: MPI_Comm_create(600).................: MPI_Comm_create(comm=0x84000004, group=0xc800000e, new_comm=0x7fff629d5614) failed MPI_Comm_create(577).................: MPIR_Comm_create_intra(241)..........: MPIR_Get_contextid(799)..............: MPIR_Get_contextid_sparse_group(1146): Cannot allocate context ID because of fragmentation (2020/2048 free on this process; ignore_id=0) Fatal error in MPI_Comm_create: Other MPI error, error stack: MPI_Comm_create(600).................: MPI_Comm_create(comm=0x84000002, group=0xc8000020, new_comm=0x7fff639ae614) failed MPI_Comm_create(577).................: MPIR_Comm_create_intra(241)..........: MPIR_Get_contextid(799)..............: MPIR_Get_contextid_sparse_group(1146): Cannot allocate context ID because of fragmentation (2002/2048 free on this process; ignore_id=0
Is there a way to fix that ?
Thanks, Reem _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss
_______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss
-- Pavan Balaji http://www.mcs.anl.gov/~balaji