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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 "Tpetra_Details_checkLaunchBlocking.hpp"
46 #include <cstdlib> // std::atexit
47 #include <string>
48 #include <vector>
49 
50 namespace Tpetra {
51 namespace Details {
52 
53 void
55 {
56  if (! Kokkos::is_initialized ()) {
57  std::vector<std::string> args = Teuchos::GlobalMPISession::getArgv ();
58  int narg = static_cast<int> (args.size ()); // must be nonconst
59 
60  std::vector<char*> args_c;
61  std::vector<std::unique_ptr<char[]>> args_;
62  for (auto const& x : args) {
63  args_.emplace_back(new char[x.size() + 1]);
64  char* ptr = args_.back().get();
65  strcpy(ptr, x.c_str());
66  args_c.push_back(ptr);
67  }
68  args_c.push_back(nullptr);
69 
70  Kokkos::initialize (narg, narg == 0 ? nullptr : args_c.data ());
71  checkOldCudaLaunchBlocking();
72 
73  std::atexit (Kokkos::finalize);
74  }
75 }
76 
77 } // namespace Details
78 } // namespace Tpetra
79 
Declaration of Tpetra::Details::initializeKokkos.
void initializeKokkos()
Initialize Kokkos, using command-line arguments (if any) given to Teuchos::GlobalMPISession.