Hi Hugo, Thank you for pointing that out. We will fix it in the next release. In the meantime, it is tracked by this issue https://github.com/pmodels/mpich/issues/2793. Best, Yanfei Guo Assistant Computer Scientist MCS Division, ANL On 10/17/17, 4:30 AM, "Hugo TABOADA" <[email protected]> wrote: Hello, I want to signal an error in the website documentation. In this URL : https://www.mpich.org/static/docs/v3.2/www3/MPI_Igather.html recvcount number of elements in receive buffer (significant only at root) (non-negative integer)should be : recvcount number of elements for any single receive (integer, significant only at rootWe can see this page 200 of the MPI standard, June 4, 2015. Hugo T. _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss