pfasst: Make sure num of procs and time steps are consistent.

Signed-off-by: Matthew Emmett <[email protected]>

Author: memmett

src/pfasst/controller/pfasst_impl.hpp

@@ -47,9 +47,15 @@ namespace pfasst
     int nblocks = int(this->get_end_time() / this->get_time_step()) / comm->size();
 
     if (nblocks == 0) {
+      LOG(INFO) << "invalid duration: there are more time processors than time steps";
       throw ValueError("invalid duration: there are more time processors than time steps");
     }
 
+    if (nblocks * comm->size() * this->get_time_step() < this->get_end_time()) {
+      LOG(INFO) << "invalid duration: mismatch between number of time processors and time steps";
+      throw ValueError("invalid duration: mismatch between number of time processors and time steps");
+    }
+
     for (int nblock = 0; nblock < nblocks; nblock++) {
       this->set_step(nblock * comm->size() + comm->rank());