add support for GPUs using wavefront size of 32 (#285)

* add gfx1100 support

Add support for Radeon 7900 GPUs (RX and PRO), and 7800 PRO.

I was contemplating to add gfx1101 and gfx1102 GPUs as well, but those are the lower end models that are more unlikely to be used for compute intensive jobs. In addition, I do not have access to them to test the support.

* update WF_SIZe for different options

Radeon systems use a WarpSize of 32, unlike current Instinct systems,
which use a warp size of 64. For the device side, a gfx specific ifdef
is sufficient. For the host side, we need to query the device
properties.

* adjust functional tests to wf_size of 32

* update unit tests to handle wf_size of 32

* address reviewer comments

[ROCm/rocshmem commit: d0c2845031]

projects/rocshmem/scripts/functional_tests/driver.sh

@@ -118,6 +118,15 @@ ExecTest() {
   NUM_THREADS=$4
   MAX_MSG_SIZE=$5
 
+  if command -v amd-smi >/dev/null
+  then
+      NUM_GPUS=$(amd-smi list | grep GPU | wc -l)
+  elif command -v rocm-smi >/dev/null
+  then
+      NUM_GPUS=$(rocm-smi --showserial | grep GPU | wc -l)
+  else
+      NUM_GPUS=64
+  fi
   TIMEOUT=$((5 * 60)) # Timeout in seconds
 
   TEST_NUM=${TEST_NUMBERS[$TEST_NAME]}
@@ -159,9 +168,13 @@ ExecTest() {
   CMD+=" >> $LOG_DIR/$TEST_LOG_NAME.log 2>&1"
 
   # Run Test
-  echo $TEST_LOG_NAME
-  echo "# $CMD" >"$LOG_DIR/$TEST_LOG_NAME.log"
-  eval $CMD
+  if [ $NUM_RANKS -le $NUM_GPUS ] && [[ "" == "$HOSTFILE" ]]; then
+    echo $TEST_LOG_NAME
+    echo "# $CMD" >"$LOG_DIR/$TEST_LOG_NAME.log"
+    eval $CMD
+  else
+    echo "Skipping test $TEST_LOG_NAME"
+  fi
 
   # Validate Test
   if [ $? -ne 0 ]