pysph-users

1–30 of 317

This is the mailing list for users of PySPH, the Python-based framework for Smoothed Particle Hydrodynamics simulations.

Please post your questions here. Please try to check the archives before you post though. Thank you!

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Chaitanya Kesanapalli, EUDE SILVA2

Sep 2

How to use Latest SISPH in GPU

Hello Chaitanya Kesanapalli, have you made any progress? I'm trying to use GPU with some ISPH (

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How to use Latest SISPH in GPU

Hello Chaitanya Kesanapalli, have you made any progress? I'm trying to use GPU with some ISPH (

Sep 2

Martin Sanchez

Aug 27

Johnson-Cook

Hi everyone, has anyone implemented the Johnson-Cook criterion in PySPH? If so, could you please

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Johnson-Cook

Hi everyone, has anyone implemented the Johnson-Cook criterion in PySPH? If so, could you please

Aug 27

EUDE SILVA2

Aug 7

Efficiently extracting high-precision fluid position near a surface (PySPH, WCSPH, OpenCL)

Hello everyone, I was able to solve the previous issue by changing the scheme I was using. Initially,

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Efficiently extracting high-precision fluid position near a surface (PySPH, WCSPH, OpenCL)

Hello everyone, I was able to solve the previous issue by changing the scheme I was using. Initially,

Aug 7

EUDE SILVA

Aug 7

Error when running GPU simulation: Unable to cast Python instance to C++ type (PyOpenCL / PySPH)

Hello everyone, my name is Eude Lucas. I'm trying to simulate the fall of multiple particles onto

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Error when running GPU simulation: Unable to cast Python instance to C++ type (PyOpenCL / PySPH)

Hello everyone, my name is Eude Lucas. I'm trying to simulate the fall of multiple particles onto

Aug 7

qingchen liu, … Martin Sanchez4

Jun 20

PySPH simulation of solid tensile test

Hello, I'm currently trying to implement Gray et al.'s (2001) SPH elastic dynamics problem (

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PySPH simulation of solid tensile test

Hello, I'm currently trying to implement Gray et al.'s (2001) SPH elastic dynamics problem (

Jun 20

Prabhu Ramachandran, A Dinesh2

May 31

[ANN] PySPH 1.0b2 release

Thank you very much for putting this together. Regards Dinesh On Fri, 30 May 2025 at 14:41, '

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[ANN] PySPH 1.0b2 release

Thank you very much for putting this together. Regards Dinesh On Fri, 30 May 2025 at 14:41, '

May 31

Leyi Ye

Mar 30

pysph visualisation problem

Dear developers and/or users I´ve been trying to install and use pysph for my research project for

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pysph visualisation problem

Dear developers and/or users I´ve been trying to install and use pysph for my research project for

Mar 30

Night Hawk

Mar 4

domain min and domain max issue

Dear All, When I run the codes in HPC cluster, I am getting the attached error since the pressure

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domain min and domain max issue

Dear All, When I run the codes in HPC cluster, I am getting the attached error since the pressure

Mar 4

Bastien Bodin

12/13/24

Error when installing pyzoltan on Cray cluster

Hi everyone, I am installing pysph on a Cray cluster, and after specifying the different MPI flags on

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Error when installing pyzoltan on Cray cluster

Hi everyone, I am installing pysph on a Cray cluster, and after specifying the different MPI flags on

12/13/24

Jáchym Buben3

11/7/24

Ubuntu 24.04 pip installation error

FINAL UPDATE: There was new post in another thread which solved my problem apparently, so I post it

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Ubuntu 24.04 pip installation error

FINAL UPDATE: There was new post in another thread which solved my problem apparently, so I post it

11/7/24

Casper Camenisch, … A Dinesh4

11/6/24

Compiler error on initial install

Thank you Navaneet and Dinesh, This method worked for me and with numpy 1.23 it is also compatible

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Compiler error on initial install

Thank you Navaneet and Dinesh, This method worked for me and with numpy 1.23 it is also compatible

11/6/24

Night Hawk

10/18/24

Help Needed: Code Debugging for Replication of Figure 4 from Reference Paper

Dear Everyone, I hope this message finds you well. I am reaching out for assistance with debugging my

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Help Needed: Code Debugging for Replication of Figure 4 from Reference Paper

Dear Everyone, I hope this message finds you well. I am reaching out for assistance with debugging my

10/18/24

Chaitanya Kesanapalli, … Luca Maggioni7

7/23/24

Installing PySPH Error: Failed building wheel for cyarray

Hi guys, I tried to follow your procedure, but it does not work. I get the following error when I try

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Installing PySPH Error: Failed building wheel for cyarray

Hi guys, I tried to follow your procedure, but it does not work. I get the following error when I try

7/23/24

Daniel Cordier, Prabhu Ramachandran2

6/20/24

PySPH with MPI - example

Hi everyone, Sorry I have been swamped to look into this. Are you doing pure MPI or are you doing a

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PySPH with MPI - example

Hi everyone, Sorry I have been swamped to look into this. Are you doing pure MPI or are you doing a

6/20/24

Igor Tavares, … Prabhu Ramachandran8

6/20/24

HOW TO INSTALL PYSPH ON MY WINDOWS 10

Hi, This looks like a Qt installation issue, I am not sure. You can try with the latest PyQt5 version

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HOW TO INSTALL PYSPH ON MY WINDOWS 10

Hi, This looks like a Qt installation issue, I am not sure. You can try with the latest PyQt5 version

6/20/24

Riana Hary RANJALAHY ANDRIAMANANA

5/27/24

'Error compiling Cython file' when running SWE 'Okushiri_tsunami' with OpenMP

Hello PySPH-users, the error happens when running 'Okushiri tsunami' example (SWE) with

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'Error compiling Cython file' when running SWE 'Okushiri_tsunami' with OpenMP

Hello PySPH-users, the error happens when running 'Okushiri tsunami' example (SWE) with

5/27/24

Riana Hary RANJALAHY ANDRIAMANANA

5/24/24

Problem running pysph test and pysph examples

Hello PySPH-users, I was able to install 'pysph 1.0b2.dev0' but 1) running 'pysph test

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Problem running pysph test and pysph examples

Hello PySPH-users, I was able to install 'pysph 1.0b2.dev0' but 1) running 'pysph test

5/24/24

Bastien Bodin

4/11/24

MPI parallelization vs number of particles

Hi everyone, When I try to run a dam break simulation with about 2000,000 particles on 32 cores, I

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MPI parallelization vs number of particles

Hi everyone, When I try to run a dam break simulation with about 2000,000 particles on 32 cores, I

4/11/24

Bastien Bodin2

4/10/24

Problem with Inlet and MPI

Hi everyone, After some tests, by trying to run the "flow_past_cylinder_2d" either on my

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Problem with Inlet and MPI

Hi everyone, After some tests, by trying to run the "flow_past_cylinder_2d" either on my

4/10/24

alom...@gmail.com

3/22/24

Kernel Gradient Correction Not Effecting Following Equations

Hello everyone, Whenever I try using the kernel gradient correction equations from the reference

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Kernel Gradient Correction Not Effecting Following Equations

Hello everyone, Whenever I try using the kernel gradient correction equations from the reference

3/22/24

Jun Li

1/3/24

Solid mechanics boundary conditions

Hi everyone, I am trying to run some statics SPH cases. I went through the tutorials and want to find

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Solid mechanics boundary conditions

Hi everyone, I am trying to run some statics SPH cases. I went through the tutorials and want to find

1/3/24

Andy, Prabhu Ramachandran3

12/24/23

Early Termination of Simulations

Hi Andy, The wcsph scheme blows up at that time (as implemented and setup, it may need some tweaking

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Early Termination of Simulations

Hi Andy, The wcsph scheme blows up at that time (as implemented and setup, it may need some tweaking

12/24/23

Maximilian Nast, A Dinesh4

12/5/23

Problems writing a Heat Transfer Equation

Great, congrats. Sent from Outlook for iOS From: 'Maximilian Nast' via pysph-users <pysph-

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Problems writing a Heat Transfer Equation

Great, congrats. Sent from Outlook for iOS From: 'Maximilian Nast' via pysph-users <pysph-

12/5/23

Blair Geng, Prabhu Ramachandran4

11/28/23

Using PySPH with MPI

Hi Prabhu, Thanks for the clarification! You mentioned "distribute the particles". I'm

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Using PySPH with MPI

Hi Prabhu, Thanks for the clarification! You mentioned "distribute the particles". I'm

11/28/23

Stephan

11/15/23

Discussion: tensile instability or something else?

Dear PySPH community, I have encountered an instability during my simulations of which I'm not

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Discussion: tensile instability or something else?

Dear PySPH community, I have encountered an instability during my simulations of which I'm not

11/15/23

Bastien Bodin, Prabhu Ramachandran2

11/12/23

High resolution simulations - Disk usage problem

You can use hdf5 output and also turn on compression with -z. Another option is to carefully choose

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High resolution simulations - Disk usage problem

You can use hdf5 output and also turn on compression with -z. Another option is to carefully choose

11/12/23

Doruk ISIK, … Prabhu Ramachandran8

9/21/23

Adami(2012) Solid wall treatment questions

Thank you for the clarification. So, in a given time step, the ghost velocities and pressures are

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Adami(2012) Solid wall treatment questions

Thank you for the clarification. So, in a given time step, the ghost velocities and pressures are

9/21/23

wenwang liao, Stephan3

8/23/23

The value of R2IJ may be treated as zero and make the result incorrect

Hi Stephan, Thanks for your advisable reply. regards, Wenwang 在2023年8月23日星期三 UTC+10 18:19:38<

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The value of R2IJ may be treated as zero and make the result incorrect

Hi Stephan, Thanks for your advisable reply. regards, Wenwang 在2023年8月23日星期三 UTC+10 18:19:38<

8/23/23

Kilver J Campos, Navaneet Villodi3

8/16/23

Why Integrator don't update positions?

Thank you, I just understand it. El miércoles, 16 de agosto de 2023 a las 13:44:18 UTC-4, naua...@

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Why Integrator don't update positions?

Thank you, I just understand it. El miércoles, 16 de agosto de 2023 a las 13:44:18 UTC-4, naua...@

8/16/23

Certa Christian, Prabhu Ramachandran3

6/14/23

Calculations performed in Loop()

Hello Prabhu, thank you for your answer. This helps me to understand how to write efficient equations

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Calculations performed in Loop()

Hello Prabhu, thank you for your answer. This helps me to understand how to write efficient equations

6/14/23