Parfor cannot serialize data which is too large

I have a parfor loop which calculates eigenvectors as a function of frequency, and stores all of them for post-processing. The size of the eigenvectors is 924*200 (Temp_zvAi for instance), and the size of zuxAi is 924*200*1311. The eigenvectors are complex, and zuxAi is around 3.8GB. Parfor returns the serialization error. How to get around this please? The code looks like below:

parfor fcount=1:Numsam

          [Amat,Bmat]=functionof(fcount);

          [Temp_zkA,Temp_zvAi]=eigenSolver (jn1,Amat,Bmat);

          Temp_zuxAi=Temp_zvAi(1:nA,1:jn1);
          zuxAi(:,:,fcount)=Temp_zuxAi;

          Temp_zuyAi=Temp_zvAi(nA+1:2*nA,1:jn1);
          zuyAi(:,:,fcount)=Temp_zuyAi;

          Temp_zuzAi=Temp_zvAi(2*nA+1:3*nA,1:jn1);
          zuzAi(:,:,fcount)=Temp_zuzAi;

end

[Matt J]

Your code looks like an in complete example. In particular, none of the Temp_ quantities show any dependence on fcount. For all we can see, they can be pre-computed before the loop and all zu_xyz_Ai(:,:,fcount) will be copies of each other.

[James]

Matt, thanks for your answer. The code only shows the places where errors are caught. Temp_ quantities depend on fcount, as Amat and Bmat are matrices dependant on fcount. The frequency dependence is irrelevant to the current problem so I deleted them.

I added one line to the code to clarify this.

Answer 1

[Edric Ellis]

The limit on PARFOR data transfers was removed in R2013a. Please upgrade if you can.

[James]

Thanks, Edric. Great news!