Problem with parallel evaluation of integrals depending on a parameter

*To*: mathgroup at smc.vnet.net*Subject*: [mg99869] Problem with parallel evaluation of integrals depending on a parameter*From*: Alan Barhorst <alan.barhorst at ttu.edu>*Date*: Mon, 18 May 2009 02:29:12 -0400 (EDT)

Hello, I am hoping someone can help me. I am trying to pass something like: G[s_]:=Integrate[F[x],{x,0,S}] NIntegrate[G[s],{s,0,1}] to parallel kernels. The operation is successful in the base kernel but fails in the other kernels due to the interior integral not being evaluated. The error is as follows. NIntegrate::"inumr" : "The integrand ( SubsuperscriptBox[ =E2=88=A7 , 0 , \ S ] Sin[ SubscriptBox[ =CF=86$10572 , 11 ]\ SubscriptBox[ =CF=88$10572 , 11 ] [x]] \ =C2=AE=EF=A1=BFx ) SubscriptBox[\"F$10572\", \"1\"] [S] has evaluated to non- numerical \ values for all sampling points in the region with boundaries {{0, 1}}." For some reason the upper bound of the interior integral is not replaced with the grid points on {0,1} in the parallel evaluation. I have Distributed the global variable definitions to the kernels after the function G[s] have been defined. I have tried several things to break this loose but have been unsuccessful. Any pointers are appreciated. AB ________________________________________________________ Alan A. Barhorst, PhD, PE | alan.barhorst at ttu.edu Professor | http://www.me.ttu.edu/ Mechanical Engineering | Phone: 806-742-3563, ext 241 Texas Tech University Lubbock, TX 79409-1021 When leaders disregard the law and human dignity, kooks are emboldened; innocence lost. Human potential cannot be developed or measured from a floating moral reference frame. ________________________________________________________

**Follow-Ups**:**Re: Problem with parallel evaluation of integrals depending***From:*DrMajorBob <btreat1@austin.rr.com>