Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] adsc_v1_0.tar.gz(4507 Kbytes)|
|Manuscript Title: FLY. A parallel tree n-body code for cosmological simulations.|
|Authors: V. Antonuccio-Delogu, U. Becciani, D. Ferro|
|Program title: FLY|
|Catalogue identifier: ADSC_v1_0|
Distribution format: tar.gz
|Journal reference: Comput. Phys. Commun. 155(2003)159|
|Programming language: Fortran 90, C.|
|Computer: CRAY T3E, SGI ORIGIN 3000, IBM SP.|
|Operating system: Univac 184.108.40.206, Irix 6.5.14, Aix 4.3.3.|
|RAM: 100M words|
|Word size: 32|
|Keywords: Tree N-body code, Parallel Computing, Cosmological simulations, Astrophysics, Cosmology.|
Nature of problem:
FLY is a parallel collisionless N-body code for the calculation of the gravitational force.
FLY is based on the hierarchical oct-tree domain decomposition introduced by Barnes and Hut (1986).
The program uses the leapfrog integrator schema, but could be changed by the user.
FLY uses the one-side communications libraries: the shmem library on the Cray T3E system and Sgi Origin system, and the lapi library on the IBM SP system.
50 seconds for each time-step, running a 2-million-particles simulation on a Sgi Origin 3800 system with 8 processors having 512 Mbytes Ram for each processor.
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