source files for the unity module

This commit was SVN r827.

src/mca/mpi/topo/unity/src/topo_unity.c

@@ -0,0 +1,74 @@
+/*
+ * $HEADER$
+ */
+#include "lam_config.h"
+#include "mca/mpi/topo/topo.h"
+#include "mca/mpi/topo/base/base.h"
+
+
+static const mca_topo_t unity {
+
+    /*
+     * Per-communicator initialization and finalization functions 
+     */
+    mca_topo_unity_init,
+    mca_topo_unity_finalize,
+    
+    NULL, /* topo_cart_coords */
+    NULL, /* topo_cart_create */
+    NULL, /* topo_cart_get */
+    NULL, /* topo_cartdim_get */
+    mca_topo_unity_cart_map,
+    NULL, /* topo_cart_rank */
+    NULL, /* topo_cart_shift */
+    NULL, /* topo_cart_sub */
+    NULL, /* topo_graph_create */
+    NULL, /* topo_graph_get */
+    mca_topo_unity_graph_map,
+    NULL, /* topo_graph_neighbors */
+    NULL, /* topo_graph_neighbors_count */
+};
+
+/*
+ * Initial query function that is invoked during MPI_INIT, allowing
+ * this module to indicate what level of thread support it provides
+ */
+int mca_topo_unity_init_query (int *thread_min, int *thread_max) {
+   
+    *thread_min = MPI_THREAD_SINGLE;
+    *thread_max = MPI_THREAD_MULTIPLE;
+    
+    return LAM_SUCCESS;
+}
+
+/*
+ * Init on the communicator
+ */
+int mca_topo_unity_init (lam_communicator_t *comm, 
+                         const mca_topo_1_0_0_t **new_topo) {
+    /* 
+     * Nothing to init on the communicator
+     */
+    return LAM_SUCCESS;
+}
+
+/*
+ * Init on the communicator
+ */
+int mca_topo_unity_finalize (lam_communicator_t *comm) {
+
+    /* 
+     * Nothing to finalize on the communicator
+     */
+    return LAM_SUCCESS;
+}
+
+int mca_topo_1_0_0_t *mca_topo_unity_comm_query (lam_communicator_t *comm,
+                                                 int *priority) {
+
+    /*
+     * This is the unity module and hence the priority is 0
+     */
+    *priority = 0;
+    return &unity;
+}

src/mca/mpi/topo/unity/src/topo_unity_module.c

@@ -0,0 +1,54 @@
+/*
+ * $HEADER$
+ *
+ * These symbols are in a file by themselves to provide nice linker
+ * semantics. Since linkers generally pull in symbols by object fules,
+ * keeping these symbols as the only symbols in this file prevents
+ * utility programs such as "laminfo" from having to import entire
+ * modules just to query their version and parameters
+ */
+
+#include "lam_config.h"
+#include "mpi.h"
+#include "mca/mpi/topo/topo.h"
+#include "topo_unity,h"
+
+/*
+ * Public string showing the topo unity module version number
+ */
+
+const char *mca_topo_unity_module_version_string = 
+    "LAM/MPI unity topology MCA module version" MCA_TOPO_UNITY_VERSION;
+
+/*
+ * Instntiate the public struct with all of our public information
+ * and pointers to our public functions in it
+ */
+
+const mca_topo_base_module_1_0_0_t mca_topo_unity_module = {
+    /*
+     * First, the mca_modult_t struct containing meta information
+     * about the module itself
+     */
+    {
+        /*
+         * Indicate that we are a topo v1.0.0 module (which also 
+         * implies a specific MCA version)
+         */
+        MCA_TOPO_UNITY_VERSION_1_0_0,
+        /*
+         * MOdule name and version
+         */
+        "unity",
+        MCA_TOPO_UNITY_MAJOR_VERSION,
+        MCA_TOPO_UNITY_MINOR_VERSION,
+        MCA_TOPO_UNITY_RELEASE_VERSION,
+        /*
+         * Module open and cose functions
+         */
+        NULL,
+        NULL
+    },
+    /*
+     * Next the MCA 
+