.TH MPI_Comm_f2c 3 "2/9/2024" " " "MPI" .SH NAME MPI_Comm_f2c \- converts Fortran INTEGER to MPI_Comm .SH SYNOPSIS .nf .fi .nf MPI_Comm MPI_Comm_f2c(MPI_Fint comm) .fi .SH INPUT PARAMETERS .PD 0 .TP .B comm - comm (None) .PD 1 .SH THREAD AND INTERRUPT SAFETY This routine is thread-safe. This means that this routine may be safely used by multiple threads without the need for any user-provided thread locks. However, the routine is not interrupt safe. Typically, this is due to the use of memory allocation routines such as .I malloc or other non-MPICH runtime routines that are themselves not interrupt-safe.