[Pw_forum] Max. no. of processors

[Bhagawan Sahu]

Dear PWSCF users,

For a 288 processors jog on a linux cluster), I got the error message 
as

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%      
task #       140     from startup : error #       288
      too many processors
  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
                                                                                                                             
 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     task #        99
     from startup : error #       288
      too many processors
 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


In PW/para.f90

MODULE para_const
  
!----------------------------------------------------------------------------
  !
  SAVE
  !
  INTEGER, PARAMETER :: &
#if defined(__QK_USER__)
      maxproc  = 2048     !  maximum number of processors.
                          !  make it big for 'big iron'.
#else
      maxproc  = 128      !  maximum number of processors
#endif
END MODULE para_const


Do I have to change

#else
      maxproc  = 128      !  maximum number of processors 

to a large number (say 1000 or anything greater than I need) and recompile 
the code again and this will take care of the error.

Bhagawan Sahu
Microelectronics Research Center
University of Texas at Austin
Austin TX 78758