User Tools

Site Tools


cluster:91

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision Both sides next revision
cluster:91 [2010/12/16 16:15]
hmeij
cluster:91 [2010/12/23 15:18]
hmeij
Line 143: Line 143:
  
  
 +Since the cluster will be shut down December 28th we have an opportunity to run Linpack on the Dell cluster.
 +
 +  * N calculation: 36 nodes, 4/8/16 gb mix for a total of 320 gb which yields 40 gb double precision (8 byte) elements … 40 gb is 40*1024*1024*1024 = 42,949,672,960 … take the square root of that and round 207,243 … 80% of that is 167,800
 +  * NB: start with 64, then 128, try 192 ...
 +  * PxQ: perfect square of 17x17=289, close to the number of cores we have (288) but then swallowtail adds two.
  
  
cluster/91.txt · Last modified: 2011/01/07 20:49 by hmeij