gfx12 Disable ll protocol (#1268)

[ROCm/rccl commit: c246e25f8e]

projects/rccl/test/common/EnvVars.cpp

@@ -15,7 +15,7 @@ namespace RcclUnitTesting
   int const UT_SINGLE_PROCESS = (1<<0);
   int const UT_MULTI_PROCESS  = (1<<1);
 
-  int getArchInfo(bool *isRightArch)
+  int getArchInfo(bool *isRightArch,  const char *gfx)
   {
     // Prepare parent->child pipe
     int pipefd[2];
@@ -25,7 +25,7 @@ namespace RcclUnitTesting
     }
     pid_t pid = fork();
     if (0 == pid) {
-      bool isGfx94 = false;
+      bool isGfxTest = false;
       int dev;
       hipGetDeviceCount(&dev);
       for (int deviceId = 0; deviceId < dev; deviceId++) {
@@ -34,14 +34,14 @@ namespace RcclUnitTesting
         hipGetDeviceProperties(&devProp, deviceId);
         char *gcnArchNameToken = strtok(devProp.gcnArchName, ":");
         strcpy(gcn, gcnArchNameToken);
-        if(std::strncmp("gfx94", gcn, 5) == 0) {
-          isGfx94 = true;
+        if(std::strncmp(gfx, gcn, 5) == 0) {
+          isGfxTest = true;
         } else {
-          isGfx94 = false;
+          isGfxTest = false;
           break;
         }
       }
-      if (write(pipefd[1], &isGfx94, sizeof(isGfx94)) != sizeof(isGfx94)) return TEST_FAIL;
+      if (write(pipefd[1], &isGfxTest, sizeof(isGfxTest)) != sizeof(isGfxTest)) return TEST_FAIL;
       close(pipefd[0]);
       close(pipefd[1]);
       exit(EXIT_SUCCESS);
@@ -95,7 +95,9 @@ namespace RcclUnitTesting
     numDetectedGpus = 0;
     getDeviceCount(&numDetectedGpus);
     isGfx94 = false;
-    getArchInfo(&isGfx94);
+    getArchInfo(&isGfx94, "gfx94");
+    isGfx12 = false;
+    getArchInfo(&isGfx12, "gfx12");
 
     showNames      = GetEnvVar("UT_SHOW_NAMES"  , 1);
     minGpus        = GetEnvVar("UT_MIN_GPUS"    , 2);