#495: MPI error from Carpet with QuasiLocalMeasures: "MPI_SUM is not defined for non-intrinsic datatypes" ---------------------+------------------------------------------------------ Reporter: hinder | Owner: eschnett Type: defect | Status: new Priority: major | Milestone: Component: Carpet | Version: Resolution: | Keywords: ---------------------+------------------------------------------------------
Comment (by eschnett):
This is most likely not a problem in QLM, since that thorn only uses intrinsic MPI datatypes. I conjecture that this is a problem in CarpetReduce, most likely uncovered by a recent version of an MPI library that is more strict about checking standard conformance.
I am still waiting for mor information. Please send a stack backtrace or similar that helps identify which routine uses which MPI datatype when this error occurs.