UofL - Department of Physics & Astronomy

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Physics Computing Resources:

Condensed Matter Theory (CMT)

  • AMD Opteron Cluster (2.0 GHz-2.4GHz): This is a distributed memory cluster composed of 121 dual nodes (i.e. 242 CPUs) with 32 nodes having 4 GB memory/node and 88 nodes having 2 GB memory/node (i.e. a total memory of 308 GBs). Clock speeds of the Opteron cluster range from 2.0 GHz to 2.4 GHz (master node@2.4 GHz, 32 nodes@2.2 GHz, and 88 nodes@2.0 GHz). The nodes are linked via gigabit ethernet connections. A 700 GB raid array system is also available for the home directory files.
  • AMD Athlon MP Cluster (1.6 GHz - 2.1 GHz): An older Linux cluster with 56 compute nodes, 56 GB of memory, and 200GB of the raid array.
  • SGI ALTIX 350 System (Intel Itanium-II): Two shared-memory computers, (clock speeds of 1.4 GHz and 1.5GHz, respectively), each with 16 CPUs, 64 GBs of memory, and 274 GBs of storage.
  • SGI ALTIX 450 System (Intel Itanium-II): A symmetric multi-processing (SMP) system with 64 GBs of shared memory, 16 CPUs, and 800 GBs of storage.

Comparative Planetology Laboratory (CPL)

  • AMD Opteron Cluster (2 GHz): This is a 64-core linux parallel computer cluster composed of 3 nodes.

University-wide Computing Resources

  • IBM iDataplex (Intel Xeon L5420, 2.5 GHz): This distributed memory cluster will have 312 nodes with quad core processors for a total of 2496 processor cores. Each node has 32 GBs of memory and the nodes will be interconnected by a mixture of Gigabit Ethernets and infiniband (16 Gps) technology. This cluster is expected to have a peak performance of 20+ teraflops.
  • IBM P570 (Power 6, 4.7 GHz): This is a SMP system with 16 CPUs and 128 GBs of shared memory.



Mars Today

Dr. Dowling's talk as part of the Public Astronomy Lecture Series will highlight current conditions on Mars and compare with what the planet was probably like 3 billion years ago. The audience will be encouraged to ask questions about the science versus the fiction in “The Martian” and NASA’s plans for future space exploration.


The Weather on Mars

Congratulations to Dr. Dowling who is cited at the end of this Washington post article: “The weather on Mars is both totally alien and somewhat Earth-like all at once.”