Clique kernel support (#295) (#15)

* Adding experimental clique-based kernels (opt-in only)

Co-authored-by: Stanley Tsang <stanley.tsang@amd.com>
Co-authored-by: Gilbert Lee <gilbert.lee@amd.com>
Co-authored-by: Wenkai Du <43822138+wenkaidu@users.noreply.github.com>

Co-authored-by: Stanley Tsang <stanley.tsang@amd.com>
Co-authored-by: Wenkai Du <43822138+wenkaidu@users.noreply.github.com>

[ROCm/rccl commit: 3e62ceddc5]

projects/rccl/src/include/comm.h

@@ -10,6 +10,9 @@
 
 #include "transport.h"
 #include "p2p.h"
+// [RCCL]
+#include "clique/CliqueManager.h"
+// [/RCCL]
 
 #if defined(__HIP_PLATFORM_HCC__) || defined(__HCC__) || defined(__HIPCC__)
 #else
@@ -156,8 +159,12 @@ struct ncclComm {
   int p2pSendCount;
   int p2pRecvCount;
 
-  // RCCL AllToAll/Scatter/Gather API
-  bool alltoallDisable;
+  // [RCCL]
+  bool alltoallDisable;            // RCCL AllToAll/Scatter/Gather API
+  CliqueManager* cliqueManager;    // CliqueManager handles pointer collection / distribution for clique-based kernels
+  int rootPid;                     // Process ID of root
+  // [/RCCL]
+
 };
 
 #endif