?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F707%2F&rft.title=The+Computer+as+a+Solution+Space&rft.creator=Braviner%2C+H.&rft.creator=Hryniv%2C+O.&rft.creator=Piette%2C+B.&rft.creator=Railton%2C+A.&rft.creator=Davey%2C+R.&rft.creator=Minton%2C+J.&rft.creator=Morawiecki%2C+P.&rft.creator=Please%2C+C.P.&rft.subject=None%2FOther&rft.description=Zenotech+provides+cloud-based+high+performance+computing+(HPC)+ser-+vices+to+customers+wanting+to+run+large+parallelised+simulations.+The+transfer+of+data+between+nodes+in+a+parallelised+problem+takes+a+few+orders+of+magnitude+more+time+than+the+calculation+of+the+data+itself%2C+causing+a+bottleneck.+Any+improvements+to+algorithm+implementation+that+can+improve+efficiency%2C+reliability%2C+accuracy+or+robustness+to+errors+would+mean+more+effective+and+economic+use+of+HPC+resource.+Zenotech+challenged+the+study+group+to+find+a+mathematical+characterisation+of+a+HPC+system+that+would+allow+for+a+more+effective+mapping+of+algo-+rithm+topology+onto+HPC+network+topology+and+a+better+understanding+of+scalability+and+robustness+in+the+system.+We+investigated+how+to+best+optimise+partition+size+and+time+of+data+transfer+on+a+square+lat-+tice+and+the+effect+of+using+old+boundary+data+for+continued+calculation+when+new+data+does+not+arrive+on+time.+We+also+produced+a+toy+network+model+to+test+the+effect+of+different+partition+choices+and+communication+strategies.&rft.date=2015-03&rft.type=Study+Group+Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F707%2F1%2FZenotech.pdf&rft.identifier=++Braviner%2C+H.+and+Hryniv%2C+O.+and+Piette%2C+B.+and+Railton%2C+A.+and+Davey%2C+R.+and+Minton%2C+J.+and+Morawiecki%2C+P.+and+Please%2C+C.P.++(2015)+The+Computer+as+a+Solution+Space.++%5BStudy+Group+Report%5D+++++