2008

The ART of Cosmological Simulations

Gottloeber, Stefan, Klypin, Anatoly

Understand

We describe the basic ideas of MPI parallelization of the N-body Adaptive Refinement Tree (ART) code.

The code uses self-adaptive domain decomposition where boundaries of the domains (parallelepipeds) constantly move -- with many degrees of freedom -- in the search of the minimum of CPU time.
The actual CPU time spent by each MPI task on previous time-step is used to adjust boundaries for the next time-step.
For a typical decomposition of 5^3 domains, the number of possible changes in boundaries is 3^{84}.

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Łokas E. L., Prada F., Wojtak R., Moles M., Gottlöber S., 2006, MNRAS, 366, L26
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Cited alongside, same era.
Łokas E. L., Wojtak R., Gottlöber S., Mamon G. A., Prada F., 2006, MNRAS, 367, 1463
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Cited alongside, same era.
Prada, F., Klypin, A. A., Simonneau, E., Betancort-Rijo, J., Patiri, S., Gottlöber, S. 2006, Astrophys. J. 645, 1001
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Cited alongside, same era.

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2007
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2007
Later among the works it cites.
Wojtak R., Łokas E. L., Mamon G. A., Gottlöber S., Prada F., Moles M., 2007, A&A, 466, 437
2007
Later among the works it cites.
Crocce, M., & Scoccimarro, R. 2008, Phys.Rev.D., 77, 023533
2008
Closest in time.
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Closest in time.
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Closest in time.
Tinker, J. L., Kravtsov, A. V, Klypin, A., Abazajian, K., Warren, M. S., Yepes, G., Gottlöber, S., Holz, D. E., 2008, astro-ph:0803.2706
2008
Closest in time.

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