== Various Limulus Benchmarks == === HPL Performance === * 200.3 GFLOPS ([wiki:i5-2400S-Raw-HPL Raw HPL Results]) * 58% of Peak (3.3GHz * 4 cores * 8 FLOPS/cycle) + (2.5Ghz * 12 cores * 8 FLOPS/cycle) = 345.6 GFLOPS Peak * [wiki:CommercialLimulus Hardware Specification] === Hadoop === Presented a tutorial on [http://hadoop.apache.org/ Hadoop] recently and used my original Limulus to demonstrate a four node Hadoop cluster. Some of the hardware is actually quite old. The nodes have a single dual core E6550, with 4 GB RAM and a 64MB SSD. The head node has a quad-core Sandy Bridge (i5-2400S) with 4 GB RAM, 64MB SSD, and .5 TB of RAID1. Connections were using the mediocre consumer based Realtek GigE Ethernet controllers on the nodes. Overall it worked well. I plan on making a Hadoop VNFS so that it is possible to boot the nodes into Hadoop. Used the [http://hortonworks.com/products/hortonworksdataplatform/ Hortonworks HDP] for the Hadoop install. The following are results of the TestDFSIO benchmark (tests the Hadoop File System) {{{ ----- TestDFSIO ----- : write Date & time: Wed Feb 06 22:23:24 EST 2013 Number of files: 10 Total MBytes processed: 10000 Throughput mb/sec: 9.684751649071087 Average IO rate mb/sec: 9.751626968383789 IO rate std deviation: 0.8502143053358981 Test exec time sec: 141.977 ----- TestDFSIO ----- : read Date & time: Wed Feb 06 22:26:34 EST 2013 Number of files: 10 Total MBytes processed: 10000 Throughput mb/sec: 44.49229838314988 Average IO rate mb/sec: 51.67889404296875 IO rate std deviation: 23.5285090607248 Test exec time sec: 58.388 }}}