[CIG-SHORT] Slip-weakening friction model for cohesion?

[Brad Aagaard]

This is the type of error I would expect to see when trying to build an 
extension using a pre v2.2.0 binary package. The necessary compilers and 
header files are missing.

Regards,
Brad


On 09/21/2017 05:21 PM, Ekaterina Bolotskaya wrote:
> Dear Brad,
> 
> I copied the m4 files to the m4 folder of friction, as you emailed.
> Now I'm getting the following error:
> 
> checking whether we can link a trivial C++ MPI program... no
> configure: error: in `/net/quake/home/bolee/pylith-2.1.3-linux-x86_64/src/pylith-2.1.3/templates/friction':
> configure: error: cannot link a trivial C++ MPI program using g++
> See `config.log' for more details
> 
> I haven't updated my Pylith version though yet.
> 
> Thanks!
> 
> 
> Best regards,
> Ekaterina Bolotskaya
> 
> PhD in Geophysics,
> Earth, Atmospheric and Planetary Science Department,
> Massachusetts Institute of Technology
> E-mail. bolee at mit.edu
> Mob. +1 (857) 284-2805
>           +7 (963) 995-36-33
> 
> ________________________________________
> From: CIG-SHORT [cig-short-bounces at geodynamics.org] on behalf of Brad Aagaard [baagaard at usgs.gov]
> Sent: Thursday, September 21, 2017 19:37
> To: cig-short at geodynamics.org
> Subject: Re: [CIG-SHORT] Slip-weakening friction model for cohesion?
> 
> Ekaterina,
> 
> First issue to note is that the PyLith binary packages prior to version
> 2.2.0 did not include the compilers and SWIG used to build the
> distribution, as noted in the manual. As a result, unless you precisely
> match the SWIG and gcc compiler versions, you will encounter
> incompatibilities between any extension you build and the compiled files
> included in the binary. For versions 2.2.0 and later, the compilers and
> SWIG files are included, so the extension will be compatible as long as
> you use the provided compilers and SWIG.
> 
> For v2.2.0 and later, I will test building the extensions again using
> the binary distributions to see if I get an error similar to the one you
> reported. This error seems to suggest that autoconf macros are missing.
> 
> Regards,
> Brad
> 
> 
> 
> On 09/21/2017 04:16 PM, Ekaterina Bolotskaya wrote:
>> Dear Brad,
>>
>> I'm using binary distribution pylith-2.1.3
>>
>> Thanks!
>>
>> Best regards,
>> Ekaterina Bolotskaya
>>
>> PhD in Geophysics,
>> Earth, Atmospheric and Planetary Science Department,
>> Massachusetts Institute of Technology
>> E-mail. bolee at mit.edu
>> Mob. +1 (857) 284-2805
>>            +7 (963) 995-36-33
>>
>> ________________________________________
>> From: CIG-SHORT [cig-short-bounces at geodynamics.org] on behalf of Brad Aagaard [baagaard at usgs.gov]
>> Sent: Thursday, September 21, 2017 18:46
>> To: cig-short at geodynamics.org
>> Subject: Re: [CIG-SHORT] Slip-weakening friction model for cohesion?
>>
>> Ekaterina,
>>
>> Are you using the PyLith binary distribution, the PyLith installer, or
>> did you clone PyLith from GitHub?
>>
>> For either of the first two, please give the version number. If cloning
>> from GitHub, what command did you use to clone?
>>
>> Thanks,
>> Brad
>>
>>
>> On 09/21/2017 03:32 PM, Ekaterina Bolotskaya wrote:
>>> Dear developers,
>>>
>>> I'm currently trying to compile the friction template.
>>> I'm receiving the following error when running the configure file:
>>>
>>> ./configure: line 16672: CIT_HEADER_MPI: command not found
>>> ./configure: line 16681: syntax error near unexpected token `3.6.1'
>>> ./configure: line 16681: `CIT_PATH_PETSC(3.6.1)'
>>>
>>> I have everything mentioned in README installed.
>>> Could you tell me what the problem might be?
>>>
>>> Thanks!
>>>
>>> Best regards,
>>> Ekaterina Bolotskaya
>>>
>>> PhD in Geophysics,
>>> Earth, Atmospheric and Planetary Science Department,
>>> Massachusetts Institute of Technology
>>> E-mail. bolee at mit.edu
>>> Mob. +1 (857) 284-2805
>>>             +7 (963) 995-36-33
>>>
>>> ________________________________________
>>> From: CIG-SHORT [cig-short-bounces at geodynamics.org] on behalf of Brad Aagaard [baagaard at usgs.gov]
>>> Sent: Monday, August 28, 2017 12:00
>>> To: cig-short at geodynamics.org
>>> Subject: Re: [CIG-SHORT] Slip-weakening friction model for cohesion?
>>>
>>> On 08/28/2017 04:14 AM, Ekaterina Bolotskaya wrote:
>>>> Dear Pylith developers,
>>>>
>>>> I'm currently running a 2D simulation which is a 2m (height) by 3m
>>>> (width) elastic block.
>>>> The block is initially compressed both vertically (2MPa) and
>>>> horizontally (2MPa) and then sheared with a rate of 0.045 MPa/year for
>>>> 100 years. Vertical displacement is fixed for all the boundaries: both
>>>> horizontal and vertical.
>>>>
>>>> The block has a horizontal fault in the middle which goes almost all the
>>>> way to the edges of the block (2.98m - fault length).
>>>> I want to have an ~1m long section with a smaller friction coefficient
>>>> (0.6) in the middle of the fault which would slip first and I want the
>>>> slip to then propagate to the two side regions that initially had higher
>>>> friction coefficient (0.8) but that should have same 0.6 coefficient
>>>> once the slip started happening. I'm implementing this using the
>>>> slip-weakening friction database.
>>>>
>>>> I'm now interested in implementing a similar thing with cohesion. I want
>>>> it to have zero value for the middle section of the fault and some
>>>> finite value for the two locked (side) sections and then change to zero
>>>> (for the side sections) in a linear or stepwise fashion as the slip
>>>> becomes larger than some threshold value (similar to what the
>>>> coefficient of friction does in slip-weakening model). Is there a way to
>>>> implement it with Pylith?
>>>
>>> The physics you describe is different from the slip-weakening friction
>>> model implemented in PyLith. As Surendra mentioned, we discuss how to
>>> add friction models to PyLith in the "Extending PyLith" chapter of the
>>> manual, which discusses an example in templates/friction.
>>>
>>> Regards,
>>> Brad
>>> _______________________________________________
>>> CIG-SHORT mailing list
>>> CIG-SHORT at geodynamics.org
>>> http://lists.geodynamics.org/cgi-bin/mailman/listinfo/cig-short
>>> _______________________________________________
>>> CIG-SHORT mailing list
>>> CIG-SHORT at geodynamics.org
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>>>
>>
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