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Tpetra_Details_initializeKokkos.cpp
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41 
43 #include "Teuchos_GlobalMPISession.hpp"
44 #include "Kokkos_Core.hpp"
45 #include <cstdlib> // std::atexit
46 #include <string>
47 #include <vector>
48 
49 namespace Tpetra {
50 namespace Details {
51 
52 void
54 {
55  if (! Kokkos::is_initialized ()) {
56  std::vector<std::string> args = Teuchos::GlobalMPISession::getArgv ();
57  int narg = static_cast<int> (args.size ()); // must be nonconst
58 
59  std::vector<char*> args_c (narg);
60  for (int k = 0; k < narg; ++k) {
61  // mfh 25 Oct 2017: I feel a bit uncomfortable about this
62  // const_cast, but there is no other way to pass
63  // command-line arguments to Kokkos::initialize.
64  args_c[k] = const_cast<char*> (args[k].c_str ());
65  }
66  Kokkos::initialize (narg, narg == 0 ? nullptr : args_c.data ());
67  std::atexit (Kokkos::finalize_all);
68  }
69 }
70 
71 } // namespace Details
72 } // namespace Tpetra
73 
Declaration of Tpetra::Details::initializeKokkos.
void initializeKokkos()
Initialize Kokkos, using command-line arguments (if any) given to Teuchos::GlobalMPISession.