# \*ERROR in u\_calloc: error allocating memory variable=au1, file=mafillsmasmain.c, line=179, num=-259654284, size=8 **URL:** \ **Category:** General Questions\ **Created:** [April 3, 2022, 5:37am UTC](https://prepomax.discourse.group/t/error-in-u-calloc-error-allocating-memory-variable-au1-file-mafillsmasmain-c-line-179-num-259654284-size-8/139 "2022-04-03T05:37:25Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![anabapy](https://avatars.discourse-cdn.com/v4/letter/a/ecccb3/32.png) [@anabapy](https://prepomax.discourse.group/u/anabapy)\ **Post date:** [April 3, 2022, 5:37am UTC](https://prepomax.discourse.group/t/error-in-u-calloc-error-allocating-memory-variable-au1-file-mafillsmasmain-c-line-179-num-259654284-size-8/139/1 "2022-04-03T05:37:25Z")
\*ERROR in u\_calloc: error allocating memory variable=au1, file=mafillsmasmain.c, line=179, num=-259654284, size=8 how can i solve it ---
**Author:** ![FEAnalyst](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/feanalyst/32/688_2.png) [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\ **Post date:** [April 3, 2022, 7:37am UTC](https://prepomax.discourse.group/t/error-in-u-calloc-error-allocating-memory-variable-au1-file-mafillsmasmain-c-line-179-num-259654284-size-8/139/2 "2022-04-03T07:37:43Z")
When does the error occur ? Can you provide more details ? ---
**Author:** ![anabapy](https://avatars.discourse-cdn.com/v4/letter/a/ecccb3/32.png) [@anabapy](https://prepomax.discourse.group/u/anabapy)\ **Post date:** [April 3, 2022, 10:14am UTC](https://prepomax.discourse.group/t/error-in-u-calloc-error-allocating-memory-variable-au1-file-mafillsmasmain-c-line-179-num-259654284-size-8/139/3 "2022-04-03T10:14:43Z")
900000mesh FE MODEL have contact tie ,have two step ---
**Author:** ![FEAnalyst](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/feanalyst/32/688_2.png) [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\ **Post date:** [April 3, 2022, 10:20am UTC](https://prepomax.discourse.group/t/error-in-u-calloc-error-allocating-memory-variable-au1-file-mafillsmasmain-c-line-179-num-259654284-size-8/139/4 "2022-04-03T10:20:06Z")
And it happens when you submit the analysis ? Can you share the file ? ---
**Author:** ![anabapy](https://avatars.discourse-cdn.com/v4/letter/a/ecccb3/32.png) [@anabapy](https://prepomax.discourse.group/u/anabapy)\ **Post date:** [April 3, 2022, 3:08pm UTC](https://prepomax.discourse.group/t/error-in-u-calloc-error-allocating-memory-variable-au1-file-mafillsmasmain-c-line-179-num-259654284-size-8/139/5 "2022-04-03T15:08:40Z")
fe model can not upload. ---
**Author:** ![PhilippTheEngineer](https://avatars.discourse-cdn.com/v4/letter/p/3ab097/32.png) [@PhilippTheEngineer](https://prepomax.discourse.group/u/PhilippTheEngineer)\ **Post date:** [April 4, 2022, 5:41am UTC](https://prepomax.discourse.group/t/error-in-u-calloc-error-allocating-memory-variable-au1-file-mafillsmasmain-c-line-179-num-259654284-size-8/139/6 "2022-04-04T05:41:23Z")
> [@Why is Moment load in conjunction to Pressure and Gravity not solving for more than 10mins on 6 cores](https://prepomax.discourse.group/t/why-is-moment-load-in-conjunction-to-pressure-and-gravity-not-solving-for-more-than-10mins-on-6-cores/92/4): > > Hi Datsnl, I checked your file Case 6 and just ran it trough with Pardiso and this is the result i got : (43s) [image] After that i recalculated it with spooles and the result took some time. So to speed up the process i would recommend that you get the Pardiso Solver from Ihors Website: When you scroll down you will find : After you downloaded it, copy ALL the data to your prepomax/Solver installation path, spooles should already be in there. Now in prepomax all you have to ch… In this Post i explained how to utilize pardiso, maybe try that BR ---
**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\ **Post date:** [April 4, 2022, 7:52am UTC](https://prepomax.discourse.group/t/error-in-u-calloc-error-allocating-memory-variable-au1-file-mafillsmasmain-c-line-179-num-259654284-size-8/139/7 "2022-04-04T07:52:00Z")
Since this is not a PrePoMax bug I have moved the topic to the category General questions.