docs: use defaulted t-params for communicators in code examples

Author: dssgabriel

docs/api/core_recv.cpp

@@ -1,19 +1,17 @@
 #include <Kokkos_Core.hpp>
 #include <KokkosComm/KokkosComm.hpp>
 
-// Define the communication and execution spaces
-using Co = KokkosComm::DefaultCommunicationSpace;
-using Ex = Kokkos::DefaultExecutionSpace;
-
-// Source rank
-int src_rank = 1;
-
+// Create an execution space instance
+auto exec = Kokkos::DefaultExecutionSpace();
 // Create a communicator
-auto comm = KokkosComm::Communicator<Co, Ex>::duplicate(raw_comm_handle, exec_space);
+auto comm = KokkosComm::Communicator<>::duplicate(raw_comm_handle, exec);
 
 // Allocate a view to receive the data
 Kokkos::View<double*> data("recv_view", 100);
 
+// Source rank
+int src_rank = 1;
+
 // Initiate a non-blocking receive with a handle
 auto req1 = KokkosComm::recv(comm, data, src_rank);
 

docs/api/core_send.cpp

@@ -1,22 +1,18 @@
 #include <Kokkos_Core.hpp>
 #include <KokkosComm/KokkosComm.hpp>
 
-// Define the communication and execution spaces
-using Co = KokkosComm::DefaultCommunicationSpace;
-using Ex = Kokkos::DefaultExecutionSpace;
-
 // Create an execution space instance
-auto exec = Ex();
+auto exec = Kokkos::DefaultExecutionSpace();
 // Create a communicator
-auto comm = KokkosComm::Communicator<Co, Ex>::duplicate(raw_comm_handle, exec);
+auto comm = KokkosComm::Communicator<>::duplicate(raw_comm_handle, exec);
 
 // Create a Kokkos view
-Kokkos::View<double*> data("data", 100);
+Kokkos::View<double*> data("send_data", 100);
 
 // Fill the view with some data
-Kokkos::parallel_for("fill_data", Kokkos::RangePolicy(exec, 0, 100), KOKKOS_LAMBDA(int i) {
-  data(i) = static_cast<double>(i);
-});
+Kokkos::parallel_for(
+    "fill_data", Kokkos::RangePolicy(exec, 0, 100), KOKKOS_LAMBDA(int i) { data(i) = static_cast<double>(i); }
+);
 exec.fence();
 
 // Destination rank
@@ -28,5 +24,5 @@ auto req1 = KokkosComm::send(comm, data, dst_rank);
 // Simulate a blocking send by waiting immediately
 KokkosComm::send(comm, data, dst_rank).wait();
 
-// Wait for a requests to complete
+// Wait for a request to complete
 KokkosComm::wait(req1);