[CIG-SEISMO] CIG-SEISMO Digest, Vol 61, Issue 2

Ying Ying yingzi.ying at me.com
Fri Feb 15 12:25:06 PST 2013


Hi Gian,

I was going to generate meshes of 3d velocity model with xmeshfem3d and set "MODEL=tomo", but not successful. It seems that in the tar version, this function is not implemented yet, and the MODEL type is even not read in. But I successfully did it by using CUBIT and providing "tomography_model.xyz". 

This function might have already been implemented in the svn version. I will try it soon

Best,
Yingzi

Sent from my iPad

On Feb 15, 2013, at 20:00, cig-seismo-request at geodynamics.org wrote:

> Send CIG-SEISMO mailing list submissions to
>    cig-seismo at geodynamics.org
> 
> To subscribe or unsubscribe via the World Wide Web, visit
>    http://geodynamics.org/cgi-bin/mailman/listinfo/cig-seismo
> or, via email, send a message with subject or body 'help' to
>    cig-seismo-request at geodynamics.org
> 
> You can reach the person managing the list at
>    cig-seismo-owner at geodynamics.org
> 
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of CIG-SEISMO digest..."
> 
> 
> Today's Topics:
> 
>   1. SPECFEM3D: Segmentation fault - xgenerate_databases
>      (gmatharu at eos.ubc.ca)
>   2. Re: SPECFEM3D: Segmentation fault - xgenerate_databases
>      (gmatharu at eos.ubc.ca)
>   3. CIG/QUEST/IRIS joint workshop on Seismic Imaging -    deadline
>      for applications approaching. (Ariel Shoresh)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Thu, 14 Feb 2013 12:27:21 -0800
> From: gmatharu at eos.ubc.ca
> Subject: [CIG-SEISMO] SPECFEM3D: Segmentation fault -
>    xgenerate_databases
> To: cig-seismo at geodynamics.org
> Message-ID:
>    <0c83d8f4365cec3de9c467aaf21d7a5d.squirrel at webmail.eos.ubc.ca>
> Content-Type: text/plain;charset=iso-8859-1
> 
> Hi
> 
> I have been running SPECFEM3D on a couple of different clusters on the
> Westgrid computer consortium. As I'm not sure what details are relevant
> I've included links which explain the builds of either cluster.
> 
> http://www.westgrid.ca/support/quickstart/lattice
> http://www.westgrid.ca/support/quickstart/orcinus
> 
> I'm currently generating a mesh on 256 processors which is 256*128*60
> (X/Y/Z). A few months back on an older build of the software I had no
> issues generating a mesh on the orcinus cluster and running the solver.
> However with an updated package I am encountering segmentation fault
> errors when running xgenerate_databases on both Lattice and Orcinus (using
> ifort,icc and mpif90 on both). My submission scripts seem correct and the
> initial meshing seems to work ok, however I'm at a loss as to what's
> causing this error. Do you have any recommendations on how to resolve this
> issue? If you require further information let me know.
> 
> Best Regards,
> 
> Gian
> 
> Below is a snippet of the error message I receive.
> 
> 
> starting MPI internal mesher on 256 processors
> 
> generating databases...
> cp: cannot stat `/OUTPUT_FILES/output_mesher.txt': No such file or directory
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> Image              PC                Routine            Line        Source
> libifcore.so.5     00002B8064AF3683  Unknown               Unknown  Unknown
> xgenerate_databas  0000000000473530  Unknown               Unknown  Unknown
> xgenerate_databas  000000000045248E  Unknown               Unknown  Unknown
> xgenerate_databas  0000000000417D08  Unknown               Unknown  Unknown
> xgenerate_databas  0000000000416351  Unknown               Unknown  Unknown
> xgenerate_databas  000000000040D10B  Unknown               Unknown  Unknown
> xgenerate_databas  000000000040BD09  Unknown               Unknown  Unknown
> xgenerate_databas  000000000040BC9C  Unknown               Unknown  Unknown
> libc.so.6          0000003F7FA1D994  Unknown               Unknown  Unknown
> xgenerate_databas  000000000040BBA9  Unknown               Unknown  Unknown
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> Image              PC                Routine            Line        Source
> libifcore.so.5     00002B2EB0DF5683  Unknown               Unknown  Unknown
> xgenerate_databas  0000000000473530  Unknown               Unknown  Unknown
> xgenerate_databas  000000000045248E  Unknown               Unknown  Unknown
> xgenerate_databas  0000000000417D08  Unknown               Unknown  Unknown
> xgenerate_databas  0000000000416351  Unknown               Unknown  Unknown
> xgenerate_databas  000000000040D10B  Unknown               Unknown  Unknown
> xgenerate_databas  000000000040BD09  Unknown               Unknown  Unknown
> xgenerate_databas  000000000040BC9C  Unknown               Unknown  Unknown
> libc.so.6          000000336A21D994  Unknown               Unknown  Unknown
> xgenerate_databas  000000000040BBA9  Unknown               Unknown  Unknown
> 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Thu, 14 Feb 2013 16:56:34 -0800
> From: gmatharu at eos.ubc.ca
> Subject: Re: [CIG-SEISMO] SPECFEM3D: Segmentation fault -
>    xgenerate_databases
> To: cig-seismo at geodynamics.org
> Message-ID:
>    <d5ff40aee3421f1b59558099b9c6ceb7.squirrel at webmail.eos.ubc.ca>
> Content-Type: text/plain;charset=iso-8859-1
> 
> So I seemed to have traced the issue down to how the tomography file is
> being read in. The error report directs me to line 360 in the
> model_tomography.f90 source code. I compared an older version and to the
> current one and there has been the introduction of an imaterial variable
> (seems more for CUBIT users). I checked the latest manual which suggests
> two ways of specifying a tomography model. I chose 1) set MODEL=tomo in
> Par_file as I had previously done.
> 
> if( imaterial_id < 0 .and. trim(undef_mat_prop(2,abs(imaterial_id))) ==
> 'tomography' ) then
> 
> Is the line causing the error. Is this an error in the way I've specified
> the input? Or does the code no longer allow input in the way it used to?
> 
> Regards,
> 
> Gian
> 
> 
> 
>> Hi
>> 
>> I have been running SPECFEM3D on a couple of different clusters on the
>> Westgrid computer consortium. As I'm not sure what details are relevant
>> I've included links which explain the builds of either cluster.
>> 
>> http://www.westgrid.ca/support/quickstart/lattice
>> http://www.westgrid.ca/support/quickstart/orcinus
>> 
>> I'm currently generating a mesh on 256 processors which is 256*128*60
>> (X/Y/Z). A few months back on an older build of the software I had no
>> issues generating a mesh on the orcinus cluster and running the solver.
>> However with an updated package I am encountering segmentation fault
>> errors when running xgenerate_databases on both Lattice and Orcinus (using
>> ifort,icc and mpif90 on both). My submission scripts seem correct and the
>> initial meshing seems to work ok, however I'm at a loss as to what's
>> causing this error. Do you have any recommendations on how to resolve this
>> issue? If you require further information let me know.
>> 
>> Best Regards,
>> 
>> Gian
>> 
>> Below is a snippet of the error message I receive.
>> 
>> 
>> starting MPI internal mesher on 256 processors
>> 
>> generating databases...
>> cp: cannot stat `/OUTPUT_FILES/output_mesher.txt': No such file or
>> directory
>> forrtl: severe (174): SIGSEGV, segmentation fault occurred
>> Image              PC                Routine            Line        Source
>> libifcore.so.5     00002B8064AF3683  Unknown               Unknown
>> Unknown
>> xgenerate_databas  0000000000473530  Unknown               Unknown
>> Unknown
>> xgenerate_databas  000000000045248E  Unknown               Unknown
>> Unknown
>> xgenerate_databas  0000000000417D08  Unknown               Unknown
>> Unknown
>> xgenerate_databas  0000000000416351  Unknown               Unknown
>> Unknown
>> xgenerate_databas  000000000040D10B  Unknown               Unknown
>> Unknown
>> xgenerate_databas  000000000040BD09  Unknown               Unknown
>> Unknown
>> xgenerate_databas  000000000040BC9C  Unknown               Unknown
>> Unknown
>> libc.so.6          0000003F7FA1D994  Unknown               Unknown
>> Unknown
>> xgenerate_databas  000000000040BBA9  Unknown               Unknown
>> Unknown
>> forrtl: severe (174): SIGSEGV, segmentation fault occurred
>> Image              PC                Routine            Line        Source
>> libifcore.so.5     00002B2EB0DF5683  Unknown               Unknown
>> Unknown
>> xgenerate_databas  0000000000473530  Unknown               Unknown
>> Unknown
>> xgenerate_databas  000000000045248E  Unknown               Unknown
>> Unknown
>> xgenerate_databas  0000000000417D08  Unknown               Unknown
>> Unknown
>> xgenerate_databas  0000000000416351  Unknown               Unknown
>> Unknown
>> xgenerate_databas  000000000040D10B  Unknown               Unknown
>> Unknown
>> xgenerate_databas  000000000040BD09  Unknown               Unknown
>> Unknown
>> xgenerate_databas  000000000040BC9C  Unknown               Unknown
>> Unknown
>> libc.so.6          000000336A21D994  Unknown               Unknown
>> Unknown
>> xgenerate_databas  000000000040BBA9  Unknown               Unknown
>> Unknown
> 
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Fri, 15 Feb 2013 08:41:58 -0800
> From: Ariel Shoresh <ashoresh at ucdavis.edu>
> Subject: [CIG-SEISMO] CIG/QUEST/IRIS joint workshop on Seismic Imaging
>    -    deadline for applications approaching.
> To: cig-all at geodynamics.org, cig-seismo at geodynamics.org
> Message-ID: <909992E2-350F-4DD5-BD57-23BF54A0175B at ucdavis.edu>
> Content-Type: text/plain; charset=us-ascii
> 
> 
> 
> 
> Good morning!
> 
> A quick reminder that the application to attend the CIG/QUEST/IRIS Joint Workshop on Seismic Imaging of Structure and
> Source will be closing on February 25th.
> 
> Below you will find the link to the workshop webpage, containing information on the workshop, application/selection process, and the
> registration link.  
> 
> http://geodynamics.org/cig/community/workinggroups/seismo/workshops/CIGQUESTIRIS/index
> 
> Attendance is limited to 80 participants. If you are interested in attending, please apply for registration as soon as possible -- we
> will contact applicants on March 1st to let them know their acceptance based on the qualifications on the workshop webpage. You are
> encouraged to present a poster at the workshop, and a preliminary title would be helpful. Please provide an estimate for travel expenses
> (airfare only), as we expect to have some funds for partial reimbursement. Accommodation will be provided for the participants.
> 
> Yours,
> Ariel Shoresh, on behalf of the Workshop Organizers:
> 
> Carl Tape
> Tim Ahern
> Alan Levander
> Tarje Nissen-Meyer
> Arthur Rodgers
> 
> ------------------------------
> 
> _______________________________________________
> CIG-SEISMO mailing list
> CIG-SEISMO at geodynamics.org
> http://geodynamics.org/cgi-bin/mailman/listinfo/cig-seismo
> 
> End of CIG-SEISMO Digest, Vol 61, Issue 2
> *****************************************


More information about the CIG-SEISMO mailing list