<div dir="ltr"><div><div><div><div><div>Hi Klaus,<br><br></div>I am running laser slab example after I modified for three materials, and I am using the following command :<br><br>/setup -auto Slab3 -2d +pm4dev -nxb=16 -nyb=16 species=cham,targ,foil +mtmmmt +mgd mgd_meshgroups=6 -parfile=example.par +3t -maxblocks=3000<br>
</div><br></div>I increased the maxblocks to 3000 as I used 6 level of AMR.In addition, Yes, I am using hypre-2.9.0b with FLASH4.0.1. I will change it to hypre-2.80b. However, the library that I used together with hypre to run FLASH4.0.1 are:<br>
</div>1-MPICH-3.0.4<br></div>2.hdf5-1.8.9<br><div><div> <br><br></div><div>However, may I ask different question here. Is increasing maxblocks to 3000 is fine to run with 4 GD memory of Mac? Do I need more memory in order to increase the resolution here?<br>
<br></div><div>Thanks again,<br></div><div>Reem<br></div><div><div><div><div><div><div class="gmail_extra"><div class="gmail_quote"><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Message: 1<br>
Date: Mon, 8 Jul 2013 12:57:21 -0500 (CDT)<br>
From: Klaus Weide <<a href="mailto:klaus@flash.uchicago.edu">klaus@flash.uchicago.edu</a>><br>
Subject: Re: [FLASH-USERS] Fatal error in MPI_Comm_create when I run<br>
Flash on Mac os x<br>
To: <a href="mailto:flash-users@flash.uchicago.edu">flash-users@flash.uchicago.edu</a><br>
Message-ID: <<a href="mailto:Pine.LNX.4.64.1307081244130.2832@flash.uchicago.edu">Pine.LNX.4.64.1307081244130.2832@flash.uchicago.edu</a>><br>
Content-Type: TEXT/PLAIN; charset=US-ASCII<br>
<br>
On Mon, 8 Jul 2013, Reem Alraddadi wrote:<br>
<br>
> I am running FLASH4 on Mac os x version 10.7.5 and I am using mpich-3.0.4<br>
> and I got the following error:<br>
><br>
> Fatal error in MPI_Comm_create: Other MPI error, error stack:<br>
> MPI_Comm_create(600)..........<br>
> .......: MPI_Comm_create(comm=0x84000002, group=0xc8001349,<br>
> new_comm=0x7fff606a8614) failed<br>
.....<br>
> People from mpich suggested that I should free unsed communicators.<br>
<br>
FLASH in general deallocates the communicators that it allocates.<br>
I am not aware of any released version of FLASH 4 with a communicator leak<br>
in the FLASH code.<br>
<br>
Are you perhaps trying to use FLASH with the hypre library?<br>
(You did not supply any information on what kind of simulation<br>
you have configured, which code units are included etc.)<br>
I know of a communicator leak problem in the FLASH4 + hypre-2.9.0b<br>
combination. If this is what you are trying to use, I suggest<br>
downgrading hypre to 2.8.0b or 2.7.0b as a solution.<br>
<br>
> So I<br>
> added in Flash_mpi.h the following line:<br>
> integer, parameter :: FLASH_COMM = MPI_COMM_FREE<br>
<br>
This change does not make much sense to me.<br>
<br>
Klaus<br>
<br>
<br>
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End of flash-users Digest, Vol 69, Issue 2<br>
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</blockquote></div><br></div></div></div></div></div></div></div></div>