A debugger for parallel processes
James H. Griffin, Harvey J. Wasserman, L. McGavran · Software Practice and Experience · 1988
Abstract A system for analysing and debugging parallel Fortran codes is in use on the Sun workstation. The system is composed of a parallel processing simulatormtsim, a window‐ and mouse‐based debugging toolmtdbx, and a set of real‐time display routines. The simulatormtsim, which is called from Fortran by a set of routines having the same syntax as the CRAY X‐MP multitasking library, causes several concurrently active user tasks to be executed. The debuggermtdbxis based on the Sundbxtooldebugging facility. It has an enhanced command interface with functional control of parallel processes in multiple windows. The display routines offer two real‐time views of multitasking synchronization primitives as they are used during execution. These three components of the debugging system afford the opportunity to analyse the behaviour of parallel processes by dynamic interaction at run‐time.