Ignore:
Timestamp:
Dec 10, 2010 8:08:13 AM (11 years ago)
Author:
raasch
Message:

New:
---

Optional barriers included in order to speed up collective operations
MPI_ALLTOALL and MPI_ALLREDUCE. This feature is controlled with new initial
parameter collective_wait. Default is .FALSE, but .TRUE. on SGI-type
systems. (advec_particles, advec_s_bc, buoyancy, check_for_restart,
cpu_statistics, data_output_2d, data_output_ptseries, flow_statistics,
global_min_max, inflow_turbulence, init_3d_model, init_particles, init_pegrid,
init_slope, parin, pres, poismg, set_particle_attributes, timestep,
read_var_list, user_statistics, write_compressed, write_var_list)

Adjustments for Kyushu Univ. (lcrte, ibmku). Concerning hybrid
(MPI/openMP) runs, the number of openMP threads per MPI tasks can now
be given as an argument to mrun-option -O. (mbuild, mrun, subjob)

Changed:


Initialization of the module command changed for SGI-ICE/lcsgi (mbuild, subjob)

Errors:


File:
1 edited

Legend:

Unmodified
Added
Removed
  • palm/trunk/SOURCE/data_output_ptseries.f90

    r392 r622  
    44! Current revisions:
    55! -----------------
    6 !
     6! optional barriers included in order to speed up collective operations
    77!
    88! Former revisions:
     
    138138    inum = number_of_particle_groups + 1
    139139
     140    IF ( collective_wait )  CALL MPI_BARRIER( comm2d, ierr )
    140141    CALL MPI_ALLREDUCE( pts_value_l(0,1), pts_value(0,1), 14*inum, MPI_REAL, &
    141142                        MPI_SUM, comm2d, ierr )
     143    IF ( collective_wait )  CALL MPI_BARRIER( comm2d, ierr )
    142144    CALL MPI_ALLREDUCE( pts_value_l(0,15), pts_value(0,15), inum, MPI_REAL, &
    143145                        MPI_MAX, comm2d, ierr )
     146    IF ( collective_wait )  CALL MPI_BARRIER( comm2d, ierr )
    144147    CALL MPI_ALLREDUCE( pts_value_l(0,16), pts_value(0,16), inum, MPI_REAL, &
    145148                        MPI_MIN, comm2d, ierr )
     
    239242    inum = number_of_particle_groups + 1
    240243
     244    IF ( collective_wait )  CALL MPI_BARRIER( comm2d, ierr )
    241245    CALL MPI_ALLREDUCE( pts_value_l(0,17), pts_value(0,17), inum*10, MPI_REAL, &
    242246                        MPI_SUM, comm2d, ierr )
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