void Op::apply(void *invec, void *inoutvec, int *len, MPI_Datatype datatype)
{
- if(smpi_privatize_global_variables){//we need to switch as the called function may silently touch global variables
+ if(smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP){//we need to switch as the called function may silently touch global variables
XBT_DEBUG("Applying operation, switch to the right data frame ");
smpi_switch_data_segment(smpi_process()->index());
}
- if(!smpi_process()->replaying()){
+ if(!smpi_process()->replaying() && *len > 0){
if(! is_fortran_op_)
this->func_(invec, inoutvec, len, &datatype);
else{