Initializing all ranks to the same value to avoid failure of UT AllR… (#1459)

* Initializing all ranks to the same value to avoid failure of  UT AllReduce for FP8 type

Co-authored-by: Marzieh Berenjkoub <mberenjk@amd.com>

test/AllReduceTests.cpp

@@ -13,7 +13,7 @@ namespace RcclUnitTesting
 
     // Configuration
     std::vector<ncclFunc_t>     const funcTypes       = {ncclCollAllReduce};
-    std::vector<ncclDataType_t> const dataTypes       = {ncclFloat32};
+    std::vector<ncclDataType_t> const dataTypes       = {ncclFloat32, ncclFp8E4M3, ncclFp8E5M2};
     std::vector<ncclRedOp_t>    const redOps          = {ncclSum};
     std::vector<int>            const roots           = {0};
     std::vector<int>            const numElements     = {393216, 384};