# Out of Memory error **URL:** \ **Category:** General Discussion\ **Created:** [January 24, 2025, 11:01am UTC](https://community.freefem.org/t/out-of-memory-error/3709 "2025-01-24T11:01:07Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![Monirul25](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/monirul25/32/3287_2.png) [@Monirul25](https://community.freefem.org/u/Monirul25)\ **Post date:** [January 24, 2025, 11:01am UTC](https://community.freefem.org/t/out-of-memory-error/3709/1 "2025-01-24T11:01:07Z")
Hello, all experts I am getting the following error " out of Memory" to a specific FF+ code. **My laptop is lenovo (intel Core i7)**. ![Help](https://canada1.discourse-cdn.com/flex030/uploads/freefem/original/2X/d/d2d4064c87595b404031d281c6bd98d49580bac1.png) **Does there any way to resolve this issue??**. I have used " UMFPACK" solver. Thanks in advance. ---
**Author:** ![frederichecht](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/frederichecht/32/15_2.png) [@frederichecht](https://community.freefem.org/u/frederichecht)\ **Post date:** [January 25, 2025, 9:33am UTC](https://community.freefem.org/t/out-of-memory-error/3709/2 "2025-01-25T09:33:51Z")
NO and Yes, You can try with MUMPS\_seq , or try to use parallel solver like PETSc , ---
**Author:** ![Monirul25](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/monirul25/32/3287_2.png) [@Monirul25](https://community.freefem.org/u/Monirul25)\ **Post date:** [January 25, 2025, 10:06am UTC](https://community.freefem.org/t/out-of-memory-error/3709/3 "2025-01-25T10:06:34Z")
Thanks sir for your replies. **Can you help me to install parallel solver like PETSc in FreeFem++**??. I am facing problem to install and use it. I have tried but not getting how to install and **use it sir. Can you please share the link to install PETSc in FreeFem++ and some demo examples.** I have seen the documentation but not getting how to install and use it. Thanks in advance sir. ---
**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\ **Post date:** [January 27, 2025, 7:36am UTC](https://community.freefem.org/t/out-of-memory-error/3709/4 "2025-01-27T07:36:53Z")
What are the problems you are facing when trying to install PETSc or MUMPS? ---
**Author:** ![Monirul25](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/monirul25/32/3287_2.png) [@Monirul25](https://community.freefem.org/u/Monirul25)\ **Post date:** [January 27, 2025, 8:18am UTC](https://community.freefem.org/t/out-of-memory-error/3709/5 "2025-01-27T08:18:13Z")
Thanks sir for your replies. I have seen the documentation but not getting the proper link to download PETSc or Mumps. Also, i am not getting how to use it after installation. What are software are require for that??. ---
**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\ **Post date:** [January 27, 2025, 9:03am UTC](https://community.freefem.org/t/out-of-memory-error/3709/6 "2025-01-27T09:03:04Z")
Follow these steps [GitHub - FreeFem/FreeFem-sources: FreeFEM source code](https://github.com/FreeFem/FreeFem-sources?tab=readme-ov-file#cicd-tools). ---
**Author:** ![Monirul25](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/monirul25/32/3287_2.png) [@Monirul25](https://community.freefem.org/u/Monirul25)\ **Post date:** [January 27, 2025, 11:07am UTC](https://community.freefem.org/t/out-of-memory-error/3709/7 "2025-01-27T11:07:43Z")
Thanks sir. I am using FFv4.13. I am getting the following error to run a PETSc code. ![PETSC](https://canada1.discourse-cdn.com/flex030/uploads/freefem/original/2X/3/3509404f050120f05b4fe4ba15f150b5a3be304d.png) How to fixed it sir?. I am very new to use it. Can i not use FreeFem++ to run PETSc code. How to download mpi version in windows of FreeFem++??. So that Code run well. ---
**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\ **Post date:** [January 27, 2025, 11:33am UTC](https://community.freefem.org/t/out-of-memory-error/3709/8 "2025-01-27T11:33:36Z")
You need to use `FreeFem++-mpi`, not `FreeFem++`. ---
**Author:** ![Monirul25](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/monirul25/32/3287_2.png) [@Monirul25](https://community.freefem.org/u/Monirul25)\ **Post date:** [January 27, 2025, 11:53am UTC](https://community.freefem.org/t/out-of-memory-error/3709/9 "2025-01-27T11:53:25Z")
I am not getting sir where is the link sir to download FreeFem+±mpi for window 11. Only FreeFem+±mpi is enough sir?. ---
**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\ **Post date:** [January 27, 2025, 1:03pm UTC](https://community.freefem.org/t/out-of-memory-error/3709/10 "2025-01-27T13:03:34Z")
This is shipped in the installer together with the `FreeFem++` binary. ---
**Author:** ![Monirul25](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/monirul25/32/3287_2.png) [@Monirul25](https://community.freefem.org/u/Monirul25)\ **Post date:** [January 27, 2025, 2:16pm UTC](https://community.freefem.org/t/out-of-memory-error/3709/11 "2025-01-27T14:16:03Z")
I have currently install FreeFem++ v4.15 sir. But where is FreeFem++ -mpi??. I am not getting it. ---
**Author:** ![Monirul25](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/monirul25/32/3287_2.png) [@Monirul25](https://community.freefem.org/u/Monirul25)\ **Post date:** [January 27, 2025, 2:34pm UTC](https://community.freefem.org/t/out-of-memory-error/3709/12 "2025-01-27T14:34:14Z")
I have get it but it showing problem to install sir. Following error comes as soon as i open it. ![Screenshot 2025-01-27 200455](https://canada1.discourse-cdn.com/flex030/uploads/freefem/original/2X/3/3adc83bd98ed6f449d017ae17853c9d321ac18dd.png) Intially at FF++ v4.14 also shows same problem. Then, i delete that and install v4.15. Now, again it showing. How to fix it sir??. ---
**Author:** ![Monirul25](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/monirul25/32/3287_2.png) [@Monirul25](https://community.freefem.org/u/Monirul25)\ **Post date:** [January 27, 2025, 4:35pm UTC](https://community.freefem.org/t/out-of-memory-error/3709/13 "2025-01-27T16:35:32Z")
It showing **msmpi.dll** is not found sir. But i downloaded all things. Why it showing so. I am using **windows 11.** ---
**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\ **Post date:** [January 28, 2025, 7:57am UTC](https://community.freefem.org/t/out-of-memory-error/3709/14 "2025-01-28T07:57:50Z")
You did not install MS-MPI. ---
**Author:** ![Monirul25](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/monirul25/32/3287_2.png) [@Monirul25](https://community.freefem.org/u/Monirul25)\ **Post date:** [January 28, 2025, 8:13am UTC](https://community.freefem.org/t/out-of-memory-error/3709/15 "2025-01-28T08:13:02Z")
Can you please share me the link of that sir so that i can install easily and use it. Thanks sir. ---
**Author:** ![Monirul25](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/monirul25/32/3287_2.png) [@Monirul25](https://community.freefem.org/u/Monirul25)\ **Post date:** [January 28, 2025, 2:38pm UTC](https://community.freefem.org/t/out-of-memory-error/3709/16 "2025-01-28T14:38:26Z")
![image](https://canada1.discourse-cdn.com/flex030/uploads/freefem/original/2X/5/5749dd775f77bd82309089f01111d86f53ddbf83.png) Sir, are you telling about this to download. What are the steps after this download over??. Two Software are coming by installing this.