[Nek5000-users] problems running in parallel

[nek5000-users at lists.mcs.anl.gov]

Dear users,

I am trying to simulate the flow past a cylinder. If I run my simulation 
with lelt=2000, lelg=2000 in 1 processor, everything works fine. 
However, if I increase the resolution to lelt=4200 I get a compilation 
error.

Following this post:

http://lists.mcs.anl.gov/pipermail/nek5000-users/2013-April/002101.html

I have seen that if I use more processors, the code compiles fine.

However, now I am not able to run the code using 4 processors. I get the 
following error:

  Number of processors:           1
  REAL    wdsize      :           8
  INTEGER wdsize      :           4


   Beginning session:
   /SL/nek5_svn/test/cyl/cyl.rea


  timer accuracy:   1.1920929E-07 sec

  read .rea file


   Beginning session:
   /SL/nek5_svn/test/cyl/cyl.rea


  timer accuracy:   9.5367432E-08 sec

  read .rea file
  nelgt/nelgv/lelt:        4425        4425        2000
  lx1  /lx2  /lx3 :           5           5           5


   ABORT: Problem size too large!

   This solver has been compiled for:
      number of elements/proc  (lelt):        2000
      total number of elements (lelg):        5000

   Recompile with the following SIZE  parameters:
      lelt >=         4425  for np =            1
      lelg >=         4425



I have a 3d mesh with 4425 elemnts. In the SIZE file I have set:


       parameter (ldim=3)
       parameter (lx1=5,ly1=lx1,lz1=lx1,lelt=2000,lelv=lelt)
       parameter (lxd=(3*lx1)/2,lyd=lxd,lzd=lxd)
       parameter (lelx=1,lely=lelx,lelz=lely)

       parameter (lx2=lx1-0)   ! Pressure array dimensions
       parameter (ly2=ly1-0)
       parameter (lz2=lz1-0)

       parameter (lx3=lx2)
       parameter (ly3=ly2)
       parameter (lz3=lz2)

       parameter (lp = 4)  ! Max # processors
       parameter (lelg = 5000) ! Max # elements, total

       parameter (lzl=3 + 2*(ldim-3))

I have tried to follow this post to solve the problem, but I couldn't:

https://lists.mcs.anl.gov/mailman/htdig/nek5000-users/2013-December/002411.html

Could you help me, please?

Regards,

SL