Preventing NIntegrate from reevaluating after DumpSave and Get

*To*: mathgroup at smc.vnet.net*Subject*: [mg68754] Preventing NIntegrate from reevaluating after DumpSave and Get*From*: Chris Rodgers <rodgers at physchem.NOSPAMox.aREMOVEc.uk>*Date*: Fri, 18 Aug 2006 03:11:58 -0400 (EDT)*Organization*: University Of Oxford, England*Sender*: owner-wri-mathgroup at wolfram.com

Hi, I have been running a computation in Mathematica which attempts to NIntegrate[myformula,{t,0,infinity}] for many different model parameters. The results are in a large list. e.g. resultslist = {0, 7, 13.33, NIntegrate[myformula_at_tricky_parameter_vals,{t,0,infinity}],11,2,...} Notice that sometimes NIntegrate does not converge for particular model parameters. At the end of a long-running batch job, I DumpSave this results list. Now, my question is this: When I load the results back into Mathematica and try to use them things are very slow. I suspect that this is because Mathematica retries evaluating all the NIntegrate[...] on which it got stuck the first time around. I have tried e.g. Get["MyFile.mx"] sanelist = resultslist /. NIntegrate[___]->NotANumber but this also takes ages evaluating the NIntegrate[...]. Is there an easy way to load the .mx file and eliminate any of the non-converged NIntegrate[...] entries without having to wait for them to all be evaluated another time? Many thanks in advance, Chris Rodgers.