"At 100 GB, scale-up still provides the best performance/$, but the 16-node cluster is close at 88% of the performance/$ of scale-up."
If these message-passing graph algorithms are representative of a "bad fit" to the parallel map-reduce model, I'd say a 12% penalty is not a bad price to pay at all in return for all the benefits of the parallel cluster in other cases.
Comments
"At 100 GB, scale-up still provides the best performance/$, but the 16-node cluster is close at 88% of the performance/$ of scale-up."
If these message-passing graph algorithms are representative of a "bad fit" to the parallel map-reduce model, I'd say a 12% penalty is not a bad price to pay at all in return for all the benefits of the parallel cluster in other cases.