Partial preemption for groups with multiple sequences #1312

Job	Run time
cpp-multinomial-greedy_causal_lm-ubuntu	9m 35s
cpp-beam_search_causal_lm-notus-7b-v1	8m 29s
cpp-beam_search_causal_lm-Phi-2	6m 10s
cpp-beam_search_causal_lm-Qwen1_5-7B-Chat	9m 10s
cpp-beam_search_causal_lm-ubuntu (./build/samples/cpp/beam_search_causal_lm/beam_search_causal_lm)	10m 36s
cpp-beam_search_causal_lm-Qwen-7B-Chat	11m 31s
cpp-beam_search_causal_lm-ubuntu (python ./samples/python/beam_search_causal_lm/beam_search_causa...	10m 31s
cpp-chat_sample-ubuntu	9m 16s
cpp-greedy_causal_lm-redpajama-3b-chat	12m 33s
cpp-greedy_causal_lm-windows	18m 51s
cpp-Phi-1_5	6m 52s
cpp-speculative_decoding_lm-ubuntu	14m 41s
cpp-prompt_lookup_decoding_lm-ubuntu	7m 31s
	2h 15m 46s

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