i#5694 core-sharded: Add core-serial support #6519
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Adds a new scheduler option single_lockstep_output which multiplexes the virtual core output streams onto a single global stream. This is simple to implement as the existing scheduler_t::stream_t class already multiplexes inputs onto an output. Hooks up the drcachesim launcher -core_serial option to this new scheduler mode. Updates the schedule_stats, basic_counts, and cache_simulator tools to support core_serial. For cache_simulator, the existing thread-to-core mapping code for round-robin and for -cpu_scheduling is kept for when in thread-sharded mode; in core-sharded mode, the scheduler's cpuid is mapped to a core index. Adds a core_serial test of schedule_stats and basic_counts and a test of cache_simulator using the scheduler's -cpu_schedule_file as-traced mode. Adds some dr$sim unit tests for cpuid to core mapping and error modes. Issue: #5694
…d comment on ordinal orderings
…exity for unknown reasons
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win64 failure is replaceall #5412 |
abhinav92003
approved these changes
Dec 21, 2023
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Adds a new scheduler option single_lockstep_output which multiplexes the virtual core output streams onto a single global stream. This is simple to implement as the existing scheduler_t::stream_t class already multiplexes inputs onto an output.
Hooks up the drcachesim launcher -core_serial option to this new scheduler mode.
Updates the schedule_stats, basic_counts, and cache_simulator tools to support core_serial. For cache_simulator, the existing thread-to-core mapping code for round-robin and for -cpu_scheduling is kept for when in thread-sharded mode; in core-sharded mode, the scheduler's cpuid is mapped to a core index.
Adds a core_serial test of schedule_stats and basic_counts and a test of cache_simulator using the scheduler's -cpu_schedule_file as-traced mode.
Adds some dr$sim unit tests for cpuid to core mapping and error modes.
Issue: #5694