M | T | W | T | F | S | S |
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23 | 24 | 25 | 26 | 27 | 28 | 1 |
2 | 3 | 4 | 5 | 6 | 7 | 8 |
9 | 10 | 11 | 12 | 13 | 14 | 15 |
16 | 17 | 18 | 19 | 20 | 21 | 22 |
23 | 24 | 25 | 26 | 27 | 28 | 29 |
30 | 31 | 1 | 2 | 3 | 4 | 5 |
MPgrafic is a parallel MPI version of grafic-1 which can produce large cosmological initial conditions on a cluster without requiring shared memory. The real Fourier transforms are carried in place using fftw, while minimizing the amount of used memory (at the expense of performance), in the spirit of grafic-1.
The code is available here
More details can be found here .
This is a slice of a 2048^3 density cube at high redshift, generated by mpgrafic.
Credit: C. Pichon, IAP S. Prunet, IAP D. Aubert, CEA
Another more spectacular (4096^3) example is shown [here