add kernel to accumulate weight value and counts based on jagged unique inverse indices #13979

Job	Run time
build_artifact (x86, linux.24xlarge, ubuntu:22.04, default, 3.13, 6.3, gcc)	39m 38s
build_artifact (x86, linux.24xlarge, ubuntu:22.04, default, 3.13, 6.3, clang)	40m 44s
build_artifact (x86, linux.24xlarge, ubuntu:22.04, default, 3.13, 6.4, clang)	37m 55s
build_artifact (x86, linux.24xlarge, ubuntu:22.04, genai, 3.13, 6.4, clang)	1h 44m 30s
build_artifact (x86, linux.24xlarge, ubuntu:22.04, genai, 3.13, 6.4, gcc)	1h 48m 15s
build_artifact (x86, linux.24xlarge, ubuntu:22.04, genai, 3.13, 6.3, gcc)	1h 17m 8s
build_artifact (x86, linux.24xlarge, ubuntu:22.04, default, 3.13, 6.4, gcc)	37m 36s
build_artifact (x86, linux.24xlarge, ubuntu:22.04, genai, 3.13, 6.3, clang)	1h 18m 54s
test_and_publish_artifact (x86, linux.rocm.gpu.2, default, 3.13, 6.3, gcc)	40m 52s
test_and_publish_artifact (x86, linux.rocm.gpu.2, default, 3.13, 6.4, clang)	1h 15m 3s
test_and_publish_artifact (x86, linux.rocm.gpu.2, default, 3.13, 6.3, clang)	29m 33s
test_and_publish_artifact (x86, linux.rocm.gpu.2, default, 3.13, 6.4, gcc)	22m 7s
test_and_publish_artifact (x86, linux.rocm.gpu.2, genai, 3.13, 6.3, clang)	15m 5s
test_and_publish_artifact (x86, linux.rocm.gpu.2, genai, 3.13, 6.4, clang)	11m 11s
test_and_publish_artifact (x86, linux.rocm.gpu.2, genai, 3.13, 6.4, gcc)	2h 1m 40s
test_and_publish_artifact (x86, linux.rocm.gpu.2, genai, 3.13, 6.3, gcc)	14m 28s
	14h 14m 39s

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