# Issues **URL:** https://gpusph.discourse.group/c/issues/7.md [Latest](https://gpusph.discourse.group/latest.md) · [Categories](https://gpusph.discourse.group/categories.md) --- ## [About the Issues category](https://gpusph.discourse.group/t/about-the-issues-category/152)
**Author:** [@giuseppe.bilotta](https://gpusph.discourse.group/u/giuseppe.bilotta)\ **Replies:** 0
This category is for issues encountered when running GPUSPH. The GitHub issues page may be a more appropriate place to report potential bugs in the code. --- ## [Changing the number of Dummy boundary Layer](https://gpusph.discourse.group/t/changing-the-number-of-dummy-boundary-layer/208)
**Author:** [@AlirezaZarei](https://gpusph.discourse.group/u/AlirezaZarei)\ **Replies:** 1\ **Last updated:** [April 4, 2024, 7:04am UTC](https://gpusph.discourse.group/t/changing-the-number-of-dummy-boundary-layer/208 "2024-04-04T07:04:14Z")
Hi, I see that the default number of the boundary layers for the “Dummy” is 3. I want to increase the number of the boundary layers to 4 but I couldn’t find the function. For the “Dynamic” boundary, there is “setDynami… --- ## [Similar error for different test cases- "Inadequate World Size"](https://gpusph.discourse.group/t/similar-error-for-different-test-cases-inadequate-world-size/199)
**Author:** [@AlirezaZarei](https://gpusph.discourse.group/u/AlirezaZarei)\ **Replies:** 8\ **Last updated:** [March 12, 2024, 3:50pm UTC](https://gpusph.discourse.group/t/similar-error-for-different-test-cases-inadequate-world-size/199 "2024-03-12T15:50:41Z")
Hi Giuseppe, I hope all is well with you. I get the attached error after a few time steps when compiling test cases with a flap. For example, when I run the “WaveTank” example with all the default values, I get this er… --- ## [Using Arbitrary DEM in 2D](https://gpusph.discourse.group/t/using-arbitrary-dem-in-2d/195)
**Author:** [@AlirezaZarei](https://gpusph.discourse.group/u/AlirezaZarei)\ **Replies:** 7\ **Last updated:** [February 15, 2024, 9:11pm UTC](https://gpusph.discourse.group/t/using-arbitrary-dem-in-2d/195 "2024-02-15T21:11:17Z")
Hi, I hope all is well with you. I want to use an arbitrary DEM and run it in 2D but I got “FATAL: non-zero z world size: spurious particles generated in the z direction?” error. Is it possible to use an arbitrary DEM … --- ## [Failed initializeChrono](https://gpusph.discourse.group/t/failed-initializechrono/151)
**Author:** [@JoJo](https://gpusph.discourse.group/u/JoJo)\ **Replies:** 6\ **Last updated:** [June 16, 2021, 10:05am UTC](https://gpusph.discourse.group/t/failed-initializechrono/151 "2021-06-16T10:05:05Z")
Hi, I got the following message when I trying to import a XYZfile with a .obj mesh In function InitializeChrono() in ProblemCore.cc Breakpoint 1, ProblemCore::InitializeChrono (this=0x5555566366e0) at src/ProblemCore.c… --- ## [multi-GPU running error](https://gpusph.discourse.group/t/multi-gpu-running-error/149)
**Author:** [@joshua](https://gpusph.discourse.group/u/joshua)\ **Replies:** 1\ **Last updated:** [May 26, 2021, 7:22pm UTC](https://gpusph.discourse.group/t/multi-gpu-running-error/149 "2021-05-26T19:22:21Z")
I used the multi-GPU running command with 2,4,6 GPUs. 2 GPUs can run but the results are unreasonable. 4 and 5 GPUs cannot run succesfully. Single GPU performs well. Is there any requirement for compilation for multi… --- ## [XYZfile/HDF5file to create a Floating\_Body](https://gpusph.discourse.group/t/xyzfile-hdf5file-to-create-a-floating-body/147)
**Author:** [@JoJo](https://gpusph.discourse.group/u/JoJo)\ **Replies:** 5\ **Last updated:** [May 26, 2021, 7:13pm UTC](https://gpusph.discourse.group/t/xyzfile-hdf5file-to-create-a-floating-body/147 "2021-05-26T19:13:47Z")
Hi, I am trying to create a Floating body using XYZfile or HDF5file. However, some trouble I have found. The first one, in XYZReader.cc. In Line.71 the value npart have not been assignment. It should be npart = getNPa… --- ## [Resume a simulation with ODE bodies](https://gpusph.discourse.group/t/resume-a-simulation-with-ode-bodies/141)
**Author:** [@JoJo](https://gpusph.discourse.group/u/JoJo)\ **Replies:** 3\ **Last updated:** [April 23, 2021, 9:26am UTC](https://gpusph.discourse.group/t/resume-a-simulation-with-ode-bodies/141 "2021-04-23T09:26:53Z")
I notice that when resuming a simulation with ODE bodies, I would get a WARNING “simulation has rigid bodies and/or moving boundaries, resume will not give identical results”. I did a simple test using the BuoyancyTest… --- ## [How can we resume a simulation](https://gpusph.discourse.group/t/how-can-we-resume-a-simulation/140)
**Author:** [@JoJo](https://gpusph.discourse.group/u/JoJo)\ **Replies:** 2\ **Last updated:** [April 18, 2021, 12:39am UTC](https://gpusph.discourse.group/t/how-can-we-resume-a-simulation/140 "2021-04-18T00:39:16Z")
Hi. I want to know how can we resume an interrupted case. I think that is what Hotfile and the “.bin” file do However, I can not find it in the documentation. --- ## [Question about adding wave gages](https://gpusph.discourse.group/t/question-about-adding-wave-gages/137)
**Author:** [@brittlyd](https://gpusph.discourse.group/u/brittlyd)\ **Replies:** 3\ **Last updated:** [April 8, 2021, 5:57am UTC](https://gpusph.discourse.group/t/question-about-adding-wave-gages/137 "2021-04-08T05:57:45Z")
Hi! I would like to start adding wave gages to my wave tank simulation, but I noticed that adding wave gages changes the amount of fluid particles at each time step. The way I am currently post-processing my code, I usu… --- ## [A small bug report](https://gpusph.discourse.group/t/a-small-bug-report/136)
**Author:** [@JoJo](https://gpusph.discourse.group/u/JoJo)\ **Replies:** 1\ **Last updated:** [February 3, 2021, 10:26am UTC](https://gpusph.discourse.group/t/a-small-bug-report/136 "2021-02-03T10:26:35Z")
In src/cuda/tensor.cu Line 219 float3 dot(symtensor3 const& T, float3 const& v) and also Line 230 float3 dot(symtensor3 const& T, float3 const& v) { return make\_float3( T.xxv.x + T.xyv.y + T.xzv.z, T.xyv.y + T.y… --- ## [Issues with new version of CUDA (11.2)](https://gpusph.discourse.group/t/issues-with-new-version-of-cuda-11-2/135)
**Author:** [@brittlyd](https://gpusph.discourse.group/u/brittlyd)\ **Replies:** 6\ **Last updated:** [January 25, 2021, 7:25am UTC](https://gpusph.discourse.group/t/issues-with-new-version-of-cuda-11-2/135 "2021-01-25T07:25:30Z")
Hello, I’ve been running tests with GPUSPH for the last year just fine with a previous version of CUDA (I think it was 11.0). However, in the last week I had a graphics card driver issue and had to reinstall CUDA 11.2 (…