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Cosmos Code Helps Probe Space Oddities


General Relativistic Radiation Magnetohydrodynamic simulation of accretion of gas into a 6.6 solar mass black hole.

The Texas Advanced Computing Center supplies computational resources for development of the Cosmos computer code, which drives supercomputer models of black hole jets and is used to investigate other unusual space phenomena.

Credit: Chris Fragile

The Cosmos computer code is driving supercomputer models of black hole jets and is used to investigate other unusual space phenomena, and since 2008 the Texas Advanced Computing Center (TACC) has supplied computational resources for the code's development.

College of Charleston professor Chris Fragile recently recruited the eXtreme Science and Engineering Discovery Environment (XSEDE) virtual organization to optimize the CosmosDG code for TACC's 18-petaflop Stampede2 supercomputer.

TACC's Damon McDougall says this task involves combining two forms of parallelism into a "hybrid parallelism" paradigm, and Fragile credits McDougall with "helping us make the codes more efficient and helping us use the XSEDE resources more efficiently so that we can do even more science with the level of resources that we're being provided."

Fragile describes the Cosmos simulations as dual-purpose, in that they help scientists better understand astrophysical phenomena's underlying physics, and interpret and predict astronomical observations.

From Texas Advanced Computing Center
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