We report preliminary results on the parallelization of a tree-code for evaluating gravitational forces in N -body astrophysical systems. Our HPF/CRAFT implementation on a CRAY T3E machine attained an encouraging speed-up behavior, reaching a value of 75 with 128 processor elements (PEs). The speed-up tests regarded the evaluation of the forces among N =130,369 particles distributed scaling the actual distribution of a sample of galaxies.
We present our MPI implementation of our N-body code for newtonian systems.
Parallelization of a tree-code for the simulation of self-gravitating astrophysical systems / CAPUZZO DOLCETTA, Roberto Angelo; Miocchi, Paolo. - In: COMPUTER PHYSICS COMMUNICATIONS. - ISSN 0010-4655. - STAMPA. - 121:(1999), pp. 423-424.
Parallelization of a tree-code for the simulation of self-gravitating astrophysical systems
CAPUZZO DOLCETTA, Roberto Angelo;MIOCCHI, PAOLO
1999
Abstract
We report preliminary results on the parallelization of a tree-code for evaluating gravitational forces in N -body astrophysical systems. Our HPF/CRAFT implementation on a CRAY T3E machine attained an encouraging speed-up behavior, reaching a value of 75 with 128 processor elements (PEs). The speed-up tests regarded the evaluation of the forces among N =130,369 particles distributed scaling the actual distribution of a sample of galaxies.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
