# The time convergence order of parallel version FreeFem++-mpi is different from that of freefem + +

**URL:** <https://community.freefem.org/t/the-time-convergence-order-of-parallel-version-freefem-mpi-is-different-from-that-of-freefem/1561>\
**Category:** General Discussion\
**Created:** [February 28, 2022, 1:42pm UTC](https://community.freefem.org/t/the-time-convergence-order-of-parallel-version-freefem-mpi-is-different-from-that-of-freefem/1561 "2022-02-28T13:42:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Qianrui](https://avatars.discourse-cdn.com/v4/letter/q/9fc348/32.png) [@Qianrui](https://community.freefem.org/u/Qianrui)\
**Post date:** [February 28, 2022, 1:42pm UTC](https://community.freefem.org/t/the-time-convergence-order-of-parallel-version-freefem-mpi-is-different-from-that-of-freefem/1561/1 "2022-02-28T13:42:11Z")

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The following is a parallel version of the program I wrote about the order of time convergence, but the output results are inconsistent with those of the program I first wrote with freefem + +.

[example.edp](https://community.freefem.org/uploads/short-url/s2U5mYLjviNEsoa3Z9pmd53sB8t.edp) (2.0 KB)