# No instance with sufficient computational resources could be assigned. Please adapt your mesh settings to reduce the overall element count and try again **URL:** \ **Category:** Project Support\ **Created:** [October 14, 2023, 8:58pm UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643 "2023-10-14T20:58:28Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![StrohmUndSoehne](https://www.simscale.com/forum/letter_avatar/strohmundsoehne/32/5_5575768a8748004e209b776fc1b2916d.png) [@StrohmUndSoehne](https://www.simscale.com/forum/u/StrohmUndSoehne)\ **Post date:** [October 14, 2023, 8:58pm UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643/1 "2023-10-14T20:58:28Z")
hey there, Im trying to simulate a new iteration of our car, but I keep getting the same error. I´m using the same mesh options as usual, so I dont understand why this error occurs. Please help: [https://www.simscale.com/workbench/?pid=2629275155751436389](https://www.simscale.com/workbench/?pid=2629275155751436389) ---
**Author:** ![anon77415598](https://www.simscale.com/forum/letter_avatar/anon77415598/32/5_5575768a8748004e209b776fc1b2916d.png) [@anon77415598](https://www.simscale.com/forum/u/anon77415598)\ **Post date:** [October 16, 2023, 12:53pm UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643/2 "2023-10-16T12:53:12Z")
Hi @StrohmUndSoehne, Thanks for posting your question. I have copied your project and tried to run a new mesh and new simulation, and it is working well. As I see that your mesh has been generated well, then I assume you have fixed the issue. Otherwise, please share the error message with us. best, ---
**Author:** ![StrohmUndSoehne](https://www.simscale.com/forum/letter_avatar/strohmundsoehne/32/5_5575768a8748004e209b776fc1b2916d.png) [@StrohmUndSoehne](https://www.simscale.com/forum/u/StrohmUndSoehne)\ **Post date:** [October 16, 2023, 1:55pm UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643/3 "2023-10-16T13:55:01Z")
unfortunately not, still getting the same error. ---
**Author:** ![StrohmUndSoehne](https://www.simscale.com/forum/letter_avatar/strohmundsoehne/32/5_5575768a8748004e209b776fc1b2916d.png) [@StrohmUndSoehne](https://www.simscale.com/forum/u/StrohmUndSoehne)\ **Post date:** [October 18, 2023, 8:12pm UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643/4 "2023-10-18T20:12:48Z")
still not working, does anyone know the fix to this issue? ---
**Author:** ![anon94452292](https://www.simscale.com/forum/letter_avatar/anon94452292/32/5_5575768a8748004e209b776fc1b2916d.png) [@anon94452292](https://www.simscale.com/forum/u/anon94452292)\ **Post date:** [October 20, 2023, 6:44am UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643/5 "2023-10-20T06:44:47Z")
Hi there, Can you share the screenshot of the error? As @anon77415598 said, the new mesh and corresponding simulation is working well. So we cannot see any errors The screenshots will help 🙂 ---
**Author:** ![Jon\_Wilde](https://www.simscale.com/forum/user_avatar/www.simscale.com/jon_wilde/32/34965_2.png) [@Jon\_Wilde](https://www.simscale.com/forum/u/Jon_Wilde)\ **Post date:** [October 20, 2023, 9:39am UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643/6 "2023-10-20T09:39:59Z")
We are looking into improving this error message too (I’m sure we could be more helpful). I’m not even sure it’s OK that it blocks you from simply trying to simulate anyway. Just a note for the OP - you don’t need to assign ‘no slip’ walls. All wall will be no slip by default 🙂 I recommend not assigning boundary conditions to the car unless it’s for things like rotating walls. ---
**Author:** ![anon94452292](https://www.simscale.com/forum/letter_avatar/anon94452292/32/5_5575768a8748004e209b776fc1b2916d.png) [@anon94452292](https://www.simscale.com/forum/u/anon94452292)\ **Post date:** [October 20, 2023, 10:55am UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643/7 "2023-10-20T10:55:40Z")
Hi again, Can you try again with a coarser mesh settings? The goal is to reduce the mesh cell count. Perhaps this works 🙂 ---
**Author:** ![StrohmUndSoehne](https://www.simscale.com/forum/letter_avatar/strohmundsoehne/32/5_5575768a8748004e209b776fc1b2916d.png) [@StrohmUndSoehne](https://www.simscale.com/forum/u/StrohmUndSoehne)\ **Post date:** [October 20, 2023, 12:37pm UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643/8 "2023-10-20T12:37:50Z")
![image](https://www.simscale.com/forum/uploads/default/original/3X/3/b/3ba8b3527d3669217db42c5e4b2ecbb64f77908d.png) even with the coarser mesh its still failing ---
**Author:** ![Jon\_Wilde](https://www.simscale.com/forum/user_avatar/www.simscale.com/jon_wilde/32/34965_2.png) [@Jon\_Wilde](https://www.simscale.com/forum/u/Jon_Wilde)\ **Post date:** [October 20, 2023, 2:01pm UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643/9 "2023-10-20T14:01:07Z")
Can you try again taking the 2nd point here into account? Try removing the no-slip boundary conditions. I’m saying this as it runs fine for me on 64 or 96 cores with this change, I didn’t adjust anything else. It would be interesting (and likely a bug) if it doesn’t for you. I just shared my project with you for reference (note the new mesh that is running with coarser mesh on the refinement regions) ---
**Author:** ![StrohmUndSoehne](https://www.simscale.com/forum/letter_avatar/strohmundsoehne/32/5_5575768a8748004e209b776fc1b2916d.png) [@StrohmUndSoehne](https://www.simscale.com/forum/u/StrohmUndSoehne)\ **Post date:** [October 20, 2023, 2:20pm UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643/10 "2023-10-20T14:20:13Z")
I deleted the BC, tried it, but the outcome sadly remains the same ☹ ---
**Author:** ![rszoeke](https://www.simscale.com/forum/user_avatar/www.simscale.com/rszoeke/32/14_2.png) [@rszoeke](https://www.simscale.com/forum/u/rszoeke)\ **Post date:** [October 21, 2023, 9:31am UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643/11 "2023-10-21T09:31:47Z")
@StrohmUndSoehne , there is just one thing that needs to be changed, which is changing the “ **Number of Processors** ” from “ **automatic** ” to “ **64** ”: ![image](https://www.simscale.com/forum/uploads/default/original/3X/7/d/7dff88591613002ef4a9d815e44bfb5834d50536.png) We are working on the issue that the automatic processor selection has a non-ideal behavior in this scenario as well as reporting a misleading error message, but for now the above change should unblock you. Also for future cases where you get the “_no instance with sufficient computational resources_” error, you should try first with manually selecting 64 cores (or whatever is the max number you can with your license). Best, Richard ---
**Author:** ![TBrink](https://www.simscale.com/forum/letter_avatar/tbrink/32/5_5575768a8748004e209b776fc1b2916d.png) [@TBrink](https://www.simscale.com/forum/u/TBrink)\ **Post date:** [November 9, 2023, 2:32pm UTC](https://www.simscale.com/forum/t/no-instance-with-sufficient-computational-resources-could-be-assigned-please-adapt-your-mesh-settings-to-reduce-the-overall-element-count-and-try-again/97643/12 "2023-11-09T14:32:29Z")
Hi, I have encoutered the same problem, as I have the educational licesense, I couldn’t change it to 64 cores, so the maximum of 32. The analysis I was performing was [this tutorial](https://www.simscale.com/docs/tutorials/aerodynamic-simulation-vehicle/), however, according to the tutorial it should take around 70 minutes but after 240 minutes of still running and 150 core hours futher, I decided to cancel, as it was just for the sake of trying out. At the moment I am researching what does make the right cores for my analysis, which doesn’t need to take so long. Meanwhile, I found [this article](https://www.simscale.com/forum/t/simulation-take-a-lot-of-time/64780/11) that says the number of cores does not always make the run faster, anyone who can help?