# ogs-devs

**URL:** https://discourse.opengeosys.org/c/mailing-list-archives/ogs-devs/6.md

[Latest](https://discourse.opengeosys.org/latest.md) · [Categories](https://discourse.opengeosys.org/categories.md) · [Tags](https://discourse.opengeosys.org/tags.md)

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## [About the ogs-devs category](https://discourse.opengeosys.org/t/about-the-ogs-devs-category/223)

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**Author:** [@system](https://discourse.opengeosys.org/u/system)\
**Replies:** 0\
**Last updated:** [December 4, 2018, 3:58pm UTC](https://discourse.opengeosys.org/t/about-the-ogs-devs-category/223 "2018-12-04T15:58:34Z")

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(Replace this first paragraph with a brief description of your new category. This guidance will appear in the category selection area, so try to keep it below 200 characters. Until you edit this description or create top…

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## [Problem related to "Calcite Porosity Change"](https://discourse.opengeosys.org/t/problem-related-to-calcite-porosity-change/1486)

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**Author:** [@mmhassan](https://discourse.opengeosys.org/u/mmhassan)\
**Replies:** 4\
**Last updated:** [August 22, 2024, 6:19am UTC](https://discourse.opengeosys.org/t/problem-related-to-calcite-porosity-change/1486 "2024-08-22T06:19:04Z")

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Hello, I am working with porosity change in domain and followed the benchmark 'Calcite porosity change and in the project file I found the solid volume fraction of calcite is '2.446e-6. How to determine this fraction …

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## [Use of parallel computing (PETSc) in plastic model (MFront)](https://discourse.opengeosys.org/t/use-of-parallel-computing-petsc-in-plastic-model-mfront/782)

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**Author:** [@Laxman](https://discourse.opengeosys.org/u/Laxman)\
**Replies:** 2\
**Last updated:** [December 23, 2021, 5:03pm UTC](https://discourse.opengeosys.org/t/use-of-parallel-computing-petsc-in-plastic-model-mfront/782 "2021-12-23T17:03:54Z")

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Hi everyone, I am trying to simulate rainfall-induced landslide using the Richards mechanics process and successful doing so in the 2D model and now I am trying to replicate all the procedures that I have performed on …

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## [GroupBasedParameter error when using parallel](https://discourse.opengeosys.org/t/groupbasedparameter-error-when-using-parallel/858)

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**Author:** [@Laxman](https://discourse.opengeosys.org/u/Laxman)\
**Replies:** 7\
**Last updated:** [October 9, 2021, 4:19am UTC](https://discourse.opengeosys.org/t/groupbasedparameter-error-when-using-parallel/858 "2021-10-09T04:19:57Z")

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Hello everyone, I am getting a critical error while running a project with a parallel capability (Petsc) and simulation freeze after that. The output message is below: This is the similar problem to Zhang Ning post in …

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## [About the study to establish a seawater intrusion model when adding a pumping well, pumping well flow ST file setting?](https://discourse.opengeosys.org/t/about-the-study-to-establish-a-seawater-intrusion-model-when-adding-a-pumping-well-pumping-well-flow-st-file-setting/785)

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**Author:** [@Eric-Zhang079](https://discourse.opengeosys.org/u/Eric-Zhang079)\
**Replies:** 0\
**Last updated:** [May 23, 2021, 11:34am UTC](https://discourse.opengeosys.org/t/about-the-study-to-establish-a-seawater-intrusion-model-when-adding-a-pumping-well-pumping-well-flow-st-file-setting/785 "2021-05-23T11:34:21Z")

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Dear all, Richards\_flow was used when I built the seawater intrusion model. I added a pumping WELL point “WELL”.I want to set the pumping flow rate to 4.9ml/s, so how should I set the value under the keyword “$DIS\_T…

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## [Richards flow vs Richards mechanics](https://discourse.opengeosys.org/t/richards-flow-vs-richards-mechanics/739)

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**Author:** [@Laxman](https://discourse.opengeosys.org/u/Laxman)\
**Replies:** 3\
**Last updated:** [April 6, 2021, 11:38pm UTC](https://discourse.opengeosys.org/t/richards-flow-vs-richards-mechanics/739 "2021-04-06T23:38:10Z")

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Hello all, Today I was trying to model a rainfall infiltration using the Richards flow process. I have applied a rainfall intensity of 45.4mm/day for a 5-day period and then an extra 10 days to monitor post rainfall beh…

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## [Linux binaries available of branch 6.3.3 with bugfixes?](https://discourse.opengeosys.org/t/linux-binaries-available-of-branch-6-3-3-with-bugfixes/699)

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**Author:** [@garibay-j](https://discourse.opengeosys.org/u/garibay-j)\
**Replies:** 4\
**Last updated:** [February 5, 2021, 8:34am UTC](https://discourse.opengeosys.org/t/linux-binaries-available-of-branch-6-3-3-with-bugfixes/699 "2021-02-05T08:34:58Z")

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Dear all, Is there a reason no Linux binaries are available for the recently launched branch 6.3.3 with bugfixes? It would be useful, especially since now with WSL2 any Windows user can run the Linux version, which I h…

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## [Partmesh anomalies](https://discourse.opengeosys.org/t/partmesh-anomalies/651)

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**Author:** [@Laxman](https://discourse.opengeosys.org/u/Laxman)\
**Replies:** 5\
**Last updated:** [December 7, 2020, 9:12am UTC](https://discourse.opengeosys.org/t/partmesh-anomalies/651 "2020-12-07T09:12:17Z")

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Hello everyone, I am trying to prepare the input files for parallel computing (PETSc) using the partmesh tool, but the discretized mesh has many elements missing. I have followed the instruction given in this docume…

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## [Error linking ogs and testrunner with python (openpty and forkpty)](https://discourse.opengeosys.org/t/error-linking-ogs-and-testrunner-with-python-openpty-and-forkpty/576)

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**Author:** [@manolis](https://discourse.opengeosys.org/u/manolis)\
**Replies:** 5\
**Last updated:** [September 26, 2020, 3:32pm UTC](https://discourse.opengeosys.org/t/error-linking-ogs-and-testrunner-with-python-openpty-and-forkpty/576 "2020-09-26T15:32:28Z")

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Hi, I am trying to compile the latest source code on an ubuntu system with python 3.8.5. At the final linking step of ogs and testrunner I get the error that there are undefined references to openpty and forkpty. I have…

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## [Open geosys general information](https://discourse.opengeosys.org/t/open-geosys-general-information/289)

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**Author:** [@Mkz\_Phimeca](https://discourse.opengeosys.org/u/Mkz_Phimeca)\
**Replies:** 9\
**Last updated:** [March 5, 2018, 4:24pm UTC](https://discourse.opengeosys.org/t/open-geosys-general-information/289 "2018-03-05T16:24:46Z")

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We’re an Enginnering corporation based in Paris, and we’re currently evaluating several FEA codes in order to discren wich ones agrees the most with our applications. I wanted to know whether there were any brochures on…

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## [Output Flux through Boundary Surface](https://discourse.opengeosys.org/t/output-flux-through-boundary-surface/271)

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**Author:** [@Wenjie\_Xu](https://discourse.opengeosys.org/u/Wenjie_Xu)\
**Replies:** 6\
**Last updated:** [January 25, 2018, 11:01pm UTC](https://discourse.opengeosys.org/t/output-flux-through-boundary-surface/271 "2018-01-25T23:01:14Z")

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Dear All, does anybody know how to output the mass flux through a boundary surface in OGS5? Cheers Wenjie

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## [Changes to Tests/Data in OGS-6](https://discourse.opengeosys.org/t/changes-to-tests-data-in-ogs-6/288)

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**Author:** [@bilke](https://discourse.opengeosys.org/u/bilke)\
**Replies:** 0\
**Last updated:** [December 5, 2017, 1:23pm UTC](https://discourse.opengeosys.org/t/changes-to-tests-data-in-ogs-6/288 "2017-12-05T13:23:54Z")

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Dear OGS developer, I would like to draw your attention to the upcoming removal of the Tests/Data git submodule in OGS-6: https://github.com/ufz/ogs/pull/2010 The folder Tests/Data will remain but its contents will be…

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## [OGS-6: Test data files with git-lfs migration information](https://discourse.opengeosys.org/t/ogs-6-test-data-files-with-git-lfs-migration-information/287)

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**Author:** [@bilke](https://discourse.opengeosys.org/u/bilke)\
**Replies:** 0\
**Last updated:** [November 15, 2017, 11:13am UTC](https://discourse.opengeosys.org/t/ogs-6-test-data-files-with-git-lfs-migration-information/287 "2017-11-15T11:13:22Z")

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Dear all, this email is of interest for OGS-6 developers only. Please ignore it otherwise. We recently switched to git-lfs for storing (large or binary) test data files (benchmark and reference files). It requires some…

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## [set Neumann boundary conditon on cylinder surface with OGS5](https://discourse.opengeosys.org/t/set-neumann-boundary-conditon-on-cylinder-surface-with-ogs5/286)

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**Author:** [@Georg\_Kosakowski](https://discourse.opengeosys.org/u/Georg_Kosakowski)\
**Replies:** 3\
**Last updated:** [October 12, 2017, 3:53pm UTC](https://discourse.opengeosys.org/t/set-neumann-boundary-conditon-on-cylinder-surface-with-ogs5/286 "2017-10-12T15:53:02Z")

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Hoi, I tried to reactivate an older model in OGS5 for calculation of heat transport in a 3D geometry. The model setup includes a Neumann (flux) boundary for a cylinder surface. For definition of the cylinder surface…

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## [Groundwater flow - error at the hydraulic-head distribution](https://discourse.opengeosys.org/t/groundwater-flow-error-at-the-hydraulic-head-distribution/285)

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**Author:** [@Leandra\_Drewes](https://discourse.opengeosys.org/u/Leandra_Drewes)\
**Replies:** 2\
**Last updated:** [August 2, 2017, 1:43pm UTC](https://discourse.opengeosys.org/t/groundwater-flow-error-at-the-hydraulic-head-distribution/285 "2017-08-02T13:43:22Z")

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Dear all, I have built a groundwater flow model with OGS. The model itself works, but there is an error displaying it with ParaView. From x = 0 km to x = 2000 km the pressure in the upper layers rises only slightly and …

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## [Any function to get the average of primary variable on any surface defined in .tin files?](https://discourse.opengeosys.org/t/any-function-to-get-the-average-of-primary-variable-on-any-surface-defined-in-tin-files/284)

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**Author:** [@nbeyond](https://discourse.opengeosys.org/u/nbeyond)\
**Replies:** 1\
**Last updated:** [June 29, 2017, 12:58am UTC](https://discourse.opengeosys.org/t/any-function-to-get-the-average-of-primary-variable-on-any-surface-defined-in-tin-files/284 "2017-06-29T00:58:18Z")

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Hello OGS developers, I have just a quick question. Is there any function in the source code of ogs5 that returns the average value of the primary variable of PCS on the surface defined in a .tin file? I guess that anyb…

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## [Error search](https://discourse.opengeosys.org/t/error-search/283)

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**Author:** [@Leandra\_Drewes](https://discourse.opengeosys.org/u/Leandra_Drewes)\
**Replies:** 4\
**Last updated:** [June 1, 2017, 12:33pm UTC](https://discourse.opengeosys.org/t/error-search/283 "2017-06-01T12:33:11Z")

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Dear all, I have built a groundwater flow model with OGS. The model itself works, but in my text file I get the error: “Invalid error method for Iteration or Coupling Node error”. If needed I can upload my files. Could…

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## [OGS5 and PETSc](https://discourse.opengeosys.org/t/ogs5-and-petsc/282)

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**Author:** [@Luca](https://discourse.opengeosys.org/u/Luca)\
**Replies:** 11\
**Last updated:** [June 1, 2017, 5:01am UTC](https://discourse.opengeosys.org/t/ogs5-and-petsc/282 "2017-06-01T05:01:10Z")

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Dear OGS developers, although OGS5 is at the end of its development (or am I wrong?) may you update the page https://docs.opengeosys.org/docs/devguide5/getting-started/build-configuration#panel3-2 adding the informati…

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## [Cam Clay Model](https://discourse.opengeosys.org/t/cam-clay-model/281)

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**Author:** [@Mohammad\_Islam](https://discourse.opengeosys.org/u/Mohammad_Islam)\
**Replies:** 4\
**Last updated:** [May 10, 2017, 2:24pm UTC](https://discourse.opengeosys.org/t/cam-clay-model/281 "2017-05-10T14:24:57Z")

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Hi All, Can any one provide a reference example of the bench mark problem for the Cam Clay Model used in Open GeoSys? I found following references:, but I am looking example of those problem Kolditz, O., Gorke, U.-J., …

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## [direct assignment of source terms to nodes](https://discourse.opengeosys.org/t/direct-assignment-of-source-terms-to-nodes/280)

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**Author:** [@Christof\_Beyer](https://discourse.opengeosys.org/u/Christof_Beyer)\
**Replies:** 4\
**Last updated:** [December 12, 2016, 7:57am UTC](https://discourse.opengeosys.org/t/direct-assignment-of-source-terms-to-nodes/280 "2016-12-12T07:57:02Z")

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Dear all, is there a source term method implemented in OGS to assign a specific flux of a flow pcs to a list of nodes? As far as I understand, $DIS\_TYPE DIRECT will assign a CONSTANT volume flux (i.e. m³/s) to all node…

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## [brent's method and numerical derivatives](https://discourse.opengeosys.org/t/brents-method-and-numerical-derivatives/279)

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**Author:** [@Christof\_Beyer](https://discourse.opengeosys.org/u/Christof_Beyer)\
**Replies:** 4\
**Last updated:** [October 6, 2016, 5:58pm UTC](https://discourse.opengeosys.org/t/brents-method-and-numerical-derivatives/279 "2016-10-06T17:58:53Z")

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Dear all, is someone aware of freely available and easy to plug in (OGS5) implementations of - Brent's method (http://www.aip.de/groups/soe/local/numres/bookcpdf/c9-3.pdf\\) - numerical approximation of derivatives (ht…

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## [Update benchmark examples on webpage](https://discourse.opengeosys.org/t/update-benchmark-examples-on-webpage/278)

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**Author:** [@marc.walther](https://discourse.opengeosys.org/u/marc.walther)\
**Replies:** 0\
**Last updated:** [August 30, 2016, 1:07pm UTC](https://discourse.opengeosys.org/t/update-benchmark-examples-on-webpage/278 "2016-08-30T13:07:51Z")

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Hi all, can we find a solution to update the benchmark examples on the webpage to be in sync eg with all running benchmarks that are tested with Jenkins? Best, Marc http://www.opengeosys.org/resources/examples ···--…

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## [2nd type BC for mass transport](https://discourse.opengeosys.org/t/2nd-type-bc-for-mass-transport/277)

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**Author:** [@Wenkui\_He](https://discourse.opengeosys.org/u/Wenkui_He)\
**Replies:** 2\
**Last updated:** [August 14, 2016, 9:31am UTC](https://discourse.opengeosys.org/t/2nd-type-bc-for-mass-transport/277 "2016-08-14T09:31:57Z")

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Dear all, is it possible to define Neumann boundary condition for flow and mass transport on a same boundary in OGS? In Feflow one can use divergence form of mass transport equation to solve such kind of problem (white…

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## [Faults on recognizing data](https://discourse.opengeosys.org/t/faults-on-recognizing-data/276)

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**Author:** [@Jhonny\_Encalada](https://discourse.opengeosys.org/u/Jhonny_Encalada)\
**Replies:** 1\
**Last updated:** [July 21, 2016, 10:49am UTC](https://discourse.opengeosys.org/t/faults-on-recognizing-data/276 "2016-07-21T10:49:38Z")

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Dear developers, I have been running a model HTM. however I decided to change it to HT only. It was because the first model was not running properly. Now I have a problem when running a HT only. I deleted everything rel…

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## [$PERMEABILITY\_FUNCTION\_STRAIN](https://discourse.opengeosys.org/t/permeability-function-strain/275)

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**Author:** [@Jhonny\_Encalada](https://discourse.opengeosys.org/u/Jhonny_Encalada)\
**Replies:** 0\
**Last updated:** [July 4, 2016, 3:41pm UTC](https://discourse.opengeosys.org/t/permeability-function-strain/275 "2016-07-04T15:41:57Z")

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Dear Developers and Users, I am modelling a HDR reservoir and I need to establish a function permeability-strain. In the OGS page there is something explained about the topic, but there is no explanation about the type …

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## [GINA Protocol file txt](https://discourse.opengeosys.org/t/gina-protocol-file-txt/274)

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**Author:** [@Jhonny\_Encalada](https://discourse.opengeosys.org/u/Jhonny_Encalada)\
**Replies:** 1\
**Last updated:** [June 30, 2016, 9:21am UTC](https://discourse.opengeosys.org/t/gina-protocol-file-txt/274 "2016-06-30T09:21:11Z")

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Dear Users and Developers, I have been running the new version of GINA in my windows 10. I was previously using the 3.1 and it was working well. However, in the new version, the open-ogs fails to star when I select the …

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## [EGU 2016](https://discourse.opengeosys.org/t/egu-2016/273)

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**Author:** [@Norihiro\_Watanabe2](https://discourse.opengeosys.org/u/Norihiro_Watanabe2)\
**Replies:** 0\
**Last updated:** [April 22, 2016, 12:16pm UTC](https://discourse.opengeosys.org/t/egu-2016/273 "2016-04-22T12:16:58Z")

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Hi solute transport modelers, Just information for you about what people are looking for, now in 2016. I've just finished presenting OGS at a PICO session. There are two questions afterwards about if OGS supports - non…

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## [One debug problem of ogs-5 source code with visual studio 2013](https://discourse.opengeosys.org/t/one-debug-problem-of-ogs-5-source-code-with-visual-studio-2013/272)

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**Author:** [@Zheng992328](https://discourse.opengeosys.org/u/Zheng992328)\
**Replies:** 2\
**Last updated:** [April 18, 2016, 5:53am UTC](https://discourse.opengeosys.org/t/one-debug-problem-of-ogs-5-source-code-with-visual-studio-2013/272 "2016-04-18T05:53:46Z")

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Dear ogs-developers: Now, I am facing a Debug problem. The process is that I downloaded ogs-5 source code from github and save them in my computer(Windows 10 x64). Then I created a folder named “build” under source c…

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## [Conflicting Eigen namespaces](https://discourse.opengeosys.org/t/conflicting-eigen-namespaces/270)

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**Author:** [@Georg\_Kosakowski](https://discourse.opengeosys.org/u/Georg_Kosakowski)\
**Replies:** 6\
**Last updated:** [February 5, 2016, 7:46pm UTC](https://discourse.opengeosys.org/t/conflicting-eigen-namespaces/270 "2016-02-05T19:46:38Z")

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Hi all, I updated today my OpenGeoSys development version (for coupling with the GEMS4R -\> Reaktoro chemical solver) to the latest trunk version. It looks like there are some changes in the way the Eigen library is us…

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## [bug in CTimeDiscretization::CalcTimeStep](https://discourse.opengeosys.org/t/bug-in-ctimediscretization-calctimestep/269)

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**Author:** [@Christof\_Beyer](https://discourse.opengeosys.org/u/Christof_Beyer)\
**Replies:** 2\
**Last updated:** [October 22, 2015, 1:04pm UTC](https://discourse.opengeosys.org/t/bug-in-ctimediscretization-calctimestep/269 "2015-10-22T13:04:53Z")

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Dear all, we found an issue with the "Critical time match" in CTimeDiscretization::CalcTimeStep(double current\_time). As I understand this functionality, it is intended to make sure that no critical time for model outp…

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