The Mare Nostrum Universe The biggest SPH simulation up to now
The Mare Nostrum Universe The biggest SPH simulation up to now The Mare Nostrum Universe The biggest SPH simulation up to now
The MareNostrum Universe TREEPM+SPH simulation ΛCDM model (WMAP1) • 500/h Mpc 3 volume • GADGET 2 code (Springel 2005) • Adiabatic SPH+TREEPM Nbody – 1024 3 FFT for the PM force. – 15 kpc force resolution. • 2x1024 3 dark and sph particles – 10 9.33 partículas – 8x10 9 M dark matter – 10 9 M for gas particles • 1 million dark halos bigger than a typical galaxy (10 12 Mo) • Simulation done at MareNostrum – 512 processors (1/8 total power) – 1Tbyte ram – 500 wallclock hrs (29 cpu years) – Output: 8600 Gbytes of data. – Same computing power than the Millenium Run.
Moore`s Law: Law Capacity of professors double every 18 months N.Body simulations double the number of particles every 16.4 months Extrapolating: Extrapolating 10 10 partículas part culas in 2008 …but but it was done in 2004 Springel et al 2005 “Millenium Run” “Hubbel Volume”
- Page 1 and 2: The Mare Nostrum Universe Gustavo Y
- Page 3 and 4: What is Mare Nostrum? • IBM JS20
- Page 8 and 9: Moore`s Law: Law Capacity of profes
- Page 10 and 11: Collaborators: • S. Gottlober (AI
- Page 12 and 13: Halo Mass function • 4063 cluster
- Page 14 and 15: Shapes of halos Shape of the dark m
- Page 16 and 17: Shape of dark matter halos at Viria
- Page 18 and 19: Dark Halos Dark matter particles Ba
- Page 20 and 21: Baryon phase space diagram
- Page 22 and 23: Baryon phase space diagram
- Page 24 and 25: Evolution of baryon phases (T > 10
- Page 26 and 27: Clusters of galaxies Most massive c
- Page 28 and 29: X-ray Temperature function
- Page 30 and 31: Comparison of Lx for two versions o
- Page 32 and 33: Evolution of scaling relations
- Page 34 and 35: Evolution of scaling relations
- Page 36 and 37: Strong Lensing • Arcs from our mo
- Page 38: Thank you -gustavo.yepes@uam.es - s
<strong>The</strong> <strong>Mare</strong><strong>Nostrum</strong> <strong>Universe</strong><br />
TREEPM+<strong>SPH</strong> <strong>simulation</strong><br />
ΛCDM model (WMAP1)<br />
• 500/h Mpc 3 volume<br />
• GADGET 2 code (Springel 2005)<br />
• Adiabatic <strong>SPH</strong>+TREEPM Nbody<br />
– 1024 3 FFT for the PM force.<br />
– 15 kpc force resolution.<br />
• 2x1024 3 dark and sph particles<br />
– 10 9.33 partículas<br />
– 8x10 9 M dark matter<br />
– 10 9 M for gas particles<br />
• 1 million dark halos bigger than<br />
a typical galaxy (10 12 Mo)<br />
• Simulation done at <strong>Mare</strong><strong>Nostrum</strong><br />
– 512 processors (1/8 <strong>to</strong>tal power)<br />
– 1Tbyte ram<br />
– 500 wallclock hrs (29 cpu years)<br />
– Output: 8600 Gbytes of data.<br />
– Same computing power than the<br />
Millenium Run.
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