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Give some slack time for other cores to finish

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This commit is contained in:
Hansung Kim
2024-06-12 09:46:51 -07:00
parent 1833e8a176
commit 86deaa8e07
2 changed files with 24 additions and 11 deletions
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33
hw/rtl/VX_core_wrapper.sv
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@@ -495,20 +495,30 @@ module Vortex import VX_gpu_pkg::*; #(
// .busy(busy)
// );
logic [31:0] finish_counter;
always @(posedge clock) begin
if (reset) begin
finish_counter <= 32'd0;
end else begin
if (finished) begin
finish_counter <= finish_counter + 32'd1;
end
end
end
// give slack for other cores to finish
wire all_cores_finished = (finish_counter > 32'd1000);
`ifdef SIMULATION
always @(posedge clock) begin
if (!reset) begin
if (all_cores_finished) begin
$display("simulation has probably ended. exiting");
$finish();
end
if (finished) begin
`ifdef SIMULATION
$display("---------------- core%2d has no more active warps ----------------", CORE_ID);
$display("simulation has ended. exiting");
$finish();
`endif
// `ifdef SIMULATION
// if ($time >= 60000) begin
// $display("simulation has probably ended. exiting");
// @(posedge clock) $finish();
// end
// `endif
$display("---------------- core%2d has no more active warps ----------------", CORE_ID);
// TODO: lane assumed to be 4
// `ifndef SYNTHESIS
// for (integer j = 0; j < `NUM_WARPS; j++) begin
@@ -525,6 +535,7 @@ module Vortex import VX_gpu_pkg::*; #(
end
end
end
`endif
endmodule : Vortex

2
hw/rtl/core/VX_schedule.sv
View File

@@ -280,6 +280,8 @@ module VX_schedule import VX_gpu_pkg::*; #(
assign gbar_bus_if.req_valid = gbar_req_valid;
assign gbar_bus_if.req_id = gbar_req_id;
assign gbar_bus_if.req_size_m1 = gbar_req_size_m1;
// NOTE(hansung): since CORE_ID is global across multiple clusters, we
// need the modulo to get the per-cluster local core id
assign gbar_bus_if.req_core_id = `NC_WIDTH'(CORE_ID % `NUM_CORES);
`endif