Removing compiler warnings about comparison of unsigned values to signed ones, and

unused variables.

This commit was SVN r13258.

ompi/mca/coll/tuned/coll_tuned_allreduce.c

@@ -340,10 +340,8 @@ ompi_coll_tuned_allreduce_intra_ring(void *sbuf, void *rbuf, int count,
 {
    int ret, line;
    int rank, size, k, recvfrom, sendto;
-   int newrank, newremote, extra_ranks;
    int segcount, lastsegcount, maxsegcount, realsegsize, maxrealsegsize;
    int blockcount, inbi;
-   int tag;
    size_t typelng;
    char *tmpsend = NULL, *tmprecv = NULL;
    char *inbuf[2] = {NULL, NULL};

ompi/mca/coll/tuned/coll_tuned_decision_fixed.c

@@ -43,7 +43,7 @@ ompi_coll_tuned_allreduce_intra_dec_fixed (void *sbuf, void *rbuf, int count,
                                            struct ompi_communicator_t *comm)
 {
     size_t dsize, block_dsize;
-    const int intermediate_message = 10000;
+    const size_t intermediate_message = 10000;
     OPAL_OUTPUT((ompi_coll_tuned_stream, "ompi_coll_tuned_allreduce_intra_dec_fixed"));
 
     /**
@@ -192,8 +192,8 @@ int ompi_coll_tuned_bcast_intra_dec_fixed(void *buff, int count,
 {
     /* Decision function based on MX results for 
     messages up to 36MB and communicator sizes up to 64 nodes */
-    const double small_message_size = 2048;
-    const double intermediate_message_size = 370728;
+    const size_t small_message_size = 2048;
+    const size_t intermediate_message_size = 370728;
     const double a_p16  = 3.2118e-6; /* [1 / byte] */
     const double b_p16  = 8.7936;   
     const double a_p64  = 2.3679e-6; /* [1 / byte] */