add hw-realistic co-issue scheduling policies

1 files changed, 16 insertions, 3 deletions

diff --git a/src/gpgpu-sim/gpu-sim.cc b/src/gpgpu-sim/gpu-sim.cc
index 4fb288b..a23c238 100644
--- a/src/gpgpu-sim/gpu-sim.cc
+++ b/src/gpgpu-sim/gpu-sim.cc
@@ -699,11 +699,24 @@ void shader_core_config::reg_options(class OptionParser *opp) {
   option_parser_register(
       opp, "-gpgpu_co_issue_priority", OPT_UINT32,
       &gpgpu_co_issue_priority,
-      "Co-issue scheduler: 0=greedy (utilization-max), 1=intra-first, "
-      "2=inter-first (matches pre-Change-4 behavior), 3=fewest-lanes, "
-      "4=same-PC (default 2).",
+      "Co-issue scheduler: 0=greedy (utilization-max, all warps), "
+      "1=intra-first, 2=inter-first (matches pre-Change-4 behavior), "
+      "3=fewest-lanes, 4=same-PC, 5=greedy K-bounded "
+      "(utilization-max over first K warps, K=gpgpu_coissue_window_K "
+      "or gpgpu_num_simd_sets if window_K=0), 6=greedy K-bounded "
+      "centered (K/2 before + K/2 after primary in m_supervised_warps "
+      "order), 7=greedy K-bounded all-before (K-1 warps strictly before "
+      "primary in m_supervised_warps order) (default 2).",
       "2");
   option_parser_register(
+      opp, "-gpgpu_coissue_window_K", OPT_UINT32,
+      &gpgpu_coissue_window_K,
+      "Window size for mode-5 K-bounded co-issue (the number of warps "
+      "the candidate scan considers, taken from the front of the "
+      "scheduler's prioritized list). 0 = use gpgpu_num_simd_sets. "
+      "Only consulted when gpgpu_co_issue_priority=5.",
+      "0");
+  option_parser_register(
       opp, "-gpgpu_simd_partitioning_debug", OPT_BOOL,
       &gpgpu_simd_partitioning_debug,
       "Enable per-cycle `SIMD_SETS:` printf spam from the co-issue "