On May 4, 2012, at 6:43 PM, Don Armstrong wrote:
> Even though this might have seemed like a stupid question, it put me
> onto the right track. Apparently, mca_btl_tcp_endpoint_accept (or
> similar) is unable to handle multiple IP addresses on the same
> interface, and rejects the connection.
Yes
Hello all
I am new to open-mpi and I am trying to install it with pgi compiler
but I found the following error.
pgf90-Error-Unknown switch: -pthread
make[4]: *** [libmpi_f90.la] Error 1
In installation I used the following command
./configure --prefix=/usr/local/open_mpi_pgi/ F77=pgf77 FC=pgf
Hello,
I have one of those 1M dollar questions I guess, but why the eager limit
threshold for Infiniband is set to 12KB by default in OpenMPI? I would
like to know where this value comes from. I am not wondering whether
this is a good setting for this parameter, but just why this is
considered
OK.This explains that if a process gets "migrated" from one CPU to another,
the time is not "affected". But it still doesn't explain if the process
gets scheduled back to the same CPU.
Just in case I have not explained my question clearly, let me explain it
from the schedular's perspective.
Lets a
Hi all,
Currently getting "You don't have permission to access / on this
server" on the www.open-mpi-org website.
--
Best regards,
David Turner
User Services Groupemail: dptur...@lbl.gov
NERSC Division phone: (510) 486-4027
Lawrence Berkeley Labfax: (510) 486-4316
Gah! Red alert! Red alert!
(I'll ping the sysadmins ASAP -- thanks for the heads up)
On May 7, 2012, at 4:13 PM, David Turner wrote:
> Hi all,
>
> Currently getting "You don't have permission to access / on this
> server" on the www.open-mpi-org website.
>
> --
> Best regards,
>
> David T
Problem fixed.
On May 7, 2012, at 4:22 PM, Jeff Squyres (jsquyres) wrote:
> Gah! Red alert! Red alert!
>
> (I'll ping the sysadmins ASAP -- thanks for the heads up)
>
>
> On May 7, 2012, at 4:13 PM, David Turner wrote:
>
>> Hi all,
>>
>> Currently getting "You don't have permission to acce
On May 7, 2012, at 2:39 PM, Jingcha Joba wrote:
> OK.This explains that if a process gets "migrated" from one CPU to another,
> the time is not "affected". But it still doesn't explain if the process gets
> scheduled back to the same CPU.
MPI_Wtime() doesn't tell you any of this stuff. It just
Jeff,
So in the above stated example, end-start will be: + 20ms ?
(time slice of P2 + P3 = 20ms)
On Mon, May 7, 2012 at 1:42 PM, Jeff Squyres (jsquyres)
wrote:
> On May 7, 2012, at 2:39 PM, Jingcha Joba wrote:
>
> > OK.This explains that if a process gets "migrated" from one CPU to
> another,
On May 7, 2012, at 8:31 PM, Jingcha Joba wrote:
> So in the above stated example, end-start will be:
> + 20ms ?
>
> (time slice of P2 + P3 = 20ms)
More or less (there's nonzero amount of time required for the kernel scheduler,
and the time quantum for each of P2 and P3 is likely not *exactly
I *believe* that this value came out of IB hardware history. I.e., when we
wrote the openib BTL, some empirical testing showed that 12k was a good value.
On May 7, 2012, at 9:25 AM, Simone Pellegrini wrote:
> Hello,
> I have one of those 1M dollar questions I guess, but why the eager limit
> t
On May 7, 2012, at 8:32 AM, ahmed lasheen wrote:
> In installation I used the following command
> ./configure --prefix=/usr/local/open_mpi_pgi/ F77=pgf77 FC=pgf90 ;
Try also listing CC=pgcc and CXX=pgCC.
--
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to:
http://www
I am running MPI and Thrust code on a cluster and measuring time for
calculations.
My MPI code -
#include "mpi.h"
#include
#include
#include
#include
#include
#include
#define MASTER 0
#define ARRAYSIZE 2000
int
*masterarray,*onearray,*twoarray,*threearray,*fourarray,*fivearray,*s
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