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--- cluster:123 [2013/10/11 18:05]
hmeij
+++ cluster:123 [2013/10/18 10:21]
hmeij [Update]
@@ Line 17: / Line 17: @@
 Next step was to collect vendor quotes for a target budget of $82K, 3 years of Dell energy consumption, an arbitrary length of time. That's so we can downscale from there because the new racks of course still consume energy. Four quotes were obtained and they show a similar pattern. Here is the comparison given key features.
-Old hardware: 109,956 KwH/year for power
+Old hardware: 109,956 KwH/year for power\\
-nodes, 2.66 ghz, 4 mb L-cache (for cpu), 240 cores (job slots),
+nodes, 2.66 ghz, 4 mb L-cache (for cpu), 240 cores (job slots),\\
 gb local drive, 340 gb total ram, 12,555 watts (power no cooling), 670 gigaflops (actual measure)
-New hardware v1: 47,304 KwH/year for power or 43% of old hardware
+New hardware v1: 47,304 KwH/year for power or 43% of old hardware\\
-nodes, 2.60 ghz, 20 mb L-cache (for cpu), 224 cores (job slots),
+nodes, 2.60 ghz, 20 mb L-cache (for cpu), 224 cores (job slots),\\
 TB local drive, 1,792 gb  total ram, 5,400 watts (power no cooling), 4,659 gigaflops (theoretical)
-New hardware v2 (half of v1): 23,652 KwH/year for cooling or 22% of Old hardware
+New hardware v2 (half of v1): 23,652 KwH/year for cooling or 22% of Old hardware\\
-nodes, 2.60 ghz, 20 mb L-cache (for cpu), 112 cores (job slots),
+nodes, 2.60 ghz, 20 mb L-cache (for cpu), 112 cores (job slots),\\
 TB local drive, 1,792 gb  total ram, 2,700 watts (power no cooling), 2,329 gigaflops (theoretical)
@@ Line 46: / Line 46: @@
 The Libert family rejoices.  The Dell family moves out. The end.
+==== Update ====
+The table below contains data for a cluster whose nodes are all on the Infiniband switch (and also ethernet switch for provision and data).  They also contain a 15K 300 GB SAS drives each for access to local fast disk (Gaussian users). It still deployes the 8-core CPUs, thus 16 pysical cores per node, 32 hyperthreaded cores per node and in both cases 256 GB of memory.
+^  Tnodes^  Tcores^  THcores^  Tmem gb^  Watts^  %of Dell^  TEnergy^  TEnergy $/Y^  TEsavings $/Y^  Quote $^   ROI Y^  Gflops^
+|  10|  160|  320|  2,560|  3,650|  29|  7,300|  7,994|  19,495|  76,866|  3.9|  3,328|
+|  9|  144|  228|  2,304|  3,285|  26|  6,570|  7,194|  20,295|  69,290|  3.4|  2,995|
+|  8|  128|  256|  2,048|  2,920|  23|  5,840|  6,395|  21,094|  61,714|  2.9|  2,662|
+|  7|  112|  224|  1,792|  2,555|  20|  5,110|  5,596|  21,893|  54,138|  2.4|  2,329|
 \\
 **[[cluster:0|Back]]**

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