Print the list of enabled ROCm devices

rocm_bandwidth_test.cpp

@@ -804,7 +804,7 @@ RocmBandwidthTest::RocmBandwidthTest(int argc, char** argv) : BaseTest() {
   // Initialize version of the test
   version_.major_id = 2;
   version_.minor_id = 3;
-  version_.step_id = 10;
+  version_.step_id = 11;
   version_.reserved = 0;
 
   bw_iter_cnt_ = getenv("ROCM_BW_ITER_CNT");

rocm_bandwidth_test.hpp

@@ -168,13 +168,14 @@ typedef enum Request_Type {
   REQ_WRITE = 2,
   REQ_VERSION = 3,
   REQ_TOPOLOGY = 4,
-  REQ_COPY_BIDIR = 5,
-  REQ_COPY_UNIDIR = 6,
-  REQ_COPY_ALL_BIDIR = 7,
-  REQ_COPY_ALL_UNIDIR = 8,
-  REQ_CONCURRENT_COPY_BIDIR = 9,
-  REQ_CONCURRENT_COPY_UNIDIR = 10,
-  REQ_INVALID = 11,
+  REQ_LIST_DEVS = 5,
+  REQ_COPY_BIDIR = 6,
+  REQ_COPY_UNIDIR = 7,
+  REQ_COPY_ALL_BIDIR = 8,
+  REQ_COPY_ALL_UNIDIR = 9,
+  REQ_CONCURRENT_COPY_BIDIR = 10,
+  REQ_CONCURRENT_COPY_UNIDIR = 11,
+  REQ_INVALID = 12,
 
 } Request_Type;
 
@@ -446,6 +447,7 @@ class RocmBandwidthTest : public BaseTest {
   uint32_t req_write_;
   uint32_t req_version_;
   uint32_t req_topology_;
+  uint32_t req_list_devs_;
   uint32_t req_copy_bidir_;
   uint32_t req_copy_unidir_;
   uint32_t req_copy_all_bidir_;

rocm_bandwidth_test_parse.cpp

@@ -222,6 +222,12 @@ void RocmBandwidthTest::ValidateInputFlags(uint32_t pf_cnt,
     return;
   }
 
+  // Input is requesting to print list of devices
+  // rocm_bandwidth_test -e
+  if (req_list_devs_ == REQ_LIST_DEVS) {
+    return;
+  }
+
   // Input is for bidirectional bandwidth for some devices
   // rocm_bandwidth_test -b
   if (req_copy_bidir_ == REQ_COPY_BIDIR) {
@@ -336,7 +342,7 @@ void RocmBandwidthTest::ParseArguments() {
   
   int opt;
   bool status;
-  while ((opt = getopt(usr_argc_, usr_argv_, "hqtclvaAb:i:s:d:r:w:m:k:K:")) != -1) {
+  while ((opt = getopt(usr_argc_, usr_argv_, "hqteclvaAb:i:s:d:r:w:m:k:K:")) != -1) {
     switch (opt) {
 
       // Print help screen
@@ -350,6 +356,12 @@ void RocmBandwidthTest::ParseArguments() {
         req_version_ = REQ_VERSION;
         break;
 
+      // Print list of devices
+      case 'e':
+        num_primary_flags++;
+        req_list_devs_ = REQ_LIST_DEVS;
+        break;
+
       // Print system topology
       case 't':
         num_primary_flags++;
@@ -508,7 +520,14 @@ void RocmBandwidthTest::ParseArguments() {
   // Discover the topology of RocR agent in system
   DiscoverTopology();
   
-  // Print system topology if user option has "-t"
+  // Print list of devices if user option is "-e"
+  if (req_list_devs_ == REQ_LIST_DEVS) {
+    PrintVersion();
+    PrintTopology();
+    exit(0);
+  }
+  
+  // Print system topology if user option is "-t"
   if (req_topology_ == REQ_TOPOLOGY) {
     PrintVersion();
     PrintTopology();

rocm_bandwidth_test_print.cpp

@@ -59,6 +59,7 @@ void RocmBandwidthTest::PrintHelpScreen() {
   std::cout << "\t -v    Run the test in validation mode" << std::endl;
   std::cout << "\t -l    Run test to collect Latency data" << std::endl;
   std::cout << "\t -c    Time the operation using CPU Timers" << std::endl;
+  std::cout << "\t -e    Prints the list of ROCm devices enabled on platform" << std::endl;
   std::cout << "\t -i    Initialize copy buffer with specified 'long double' pattern" << std::endl;
   std::cout << "\t -t    Prints system topology and allocatable memory info" << std::endl;
   std::cout << "\t -m    List of buffer sizes to use, specified in Megabytes" << std::endl;