Hopper config

configs/tested-cfgs/SM90_H100/config_hopper_islip.icnt

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+//21*1 fly with 32 flits per packet under gpgpusim injection mode
+use_map = 0;
+flit_size = 40; 
+
+// currently we do not use this, see subnets below
+network_count = 2;
+
+// Topology
+topology = fly;
+k = 144;
+n = 1;
+
+// Routing
+
+routing_function = dest_tag;
+
+
+// Flow control
+
+num_vcs     = 1;
+vc_buf_size = 256;
+input_buffer_size = 256;
+ejection_buffer_size = 256;
+boundary_buffer_size = 256;
+
+wait_for_tail_credit = 0;
+
+// Router architecture
+
+vc_allocator = islip; //separable_input_first;
+sw_allocator = islip; //separable_input_first;
+alloc_iters  = 1;
+
+credit_delay   = 0;
+routing_delay  = 0;
+vc_alloc_delay = 1;
+sw_alloc_delay = 1;
+
+input_speedup     = 1;
+output_speedup    = 1;
+internal_speedup  = 2.0;
+
+// Traffic, GPGPU-Sim does not use this
+
+traffic                = uniform;
+packet_size ={{1,2,3,4},{10,20}};
+packet_size_rate={{1,1,1,1},{2,1}};
+
+// Simulation - Don't change
+
+sim_type       = gpgpusim;
+//sim_type = latency;
+injection_rate = 0.1;
+
+subnets = 2;
+
+// Always use read and write no matter following line
+//use_read_write = 1;
+
+
+read_request_subnet = 0;
+read_reply_subnet = 1;
+write_request_subnet = 0;
+write_reply_subnet = 1;
+
+read_request_begin_vc = 0;
+read_request_end_vc = 0;
+write_request_begin_vc = 0;
+write_request_end_vc = 0;
+read_reply_begin_vc = 0;
+read_reply_end_vc = 0;
+write_reply_begin_vc = 0;
+write_reply_end_vc = 0;
+

configs/tested-cfgs/SM90_H100/gpgpusim.config

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+# Copyright (c) 2018-2021, Vijay Kandiah, Junrui Pan, Mahmoud Khairy, Scott Peverelle, Timothy Rogers, Tor M. Aamodt, Nikos Hardavellas
+# Northwestern University, Purdue University, The University of British Columbia
+# All rights reserved.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+
+# 1. Redistributions of source code must retain the above copyright notice, this
+#    list of conditions and the following disclaimer;
+# 2. Redistributions in binary form must reproduce the above copyright notice,
+#    this list of conditions and the following disclaimer in the documentation
+#    and/or other materials provided with the distribution;
+# 3. Neither the names of Northwestern University, Purdue University,
+#    The University of British Columbia nor the names of their contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+
+# This config models the H100 SMX5
+# For more info about hopper architecture:
+#https://www.advancedclustering.com/wp-content/uploads/2022/03/gtc22-whitepaper-hopper.pdf
+
+# base config were taken from v100 and modified
+# Items modified
+# Num SMs, mem channels (HBM3 datawidth per channel)
+# L1D, L2 size
+# 
+# functional simulator specification
+-gpgpu_ptx_instruction_classification 0
+-gpgpu_ptx_sim_mode 0
+-gpgpu_ptx_force_max_capability 70 
+
+# Device Limits
+-gpgpu_stack_size_limit 1024
+-gpgpu_heap_size_limit 8388608
+-gpgpu_runtime_sync_depth_limit 2
+-gpgpu_runtime_pending_launch_count_limit 2048
+-gpgpu_kernel_launch_latency 5000
+-gpgpu_TB_launch_latency 0
+-gpgpu_max_concurrent_kernel 128
+
+# Compute Capability
+-gpgpu_compute_capability_major 7
+-gpgpu_compute_capability_minor 0
+
+# PTX execution-driven
+-gpgpu_ptx_convert_to_ptxplus 0
+-gpgpu_ptx_save_converted_ptxplus 0
+
+# high level architecture configuration
+-gpgpu_n_clusters 132	 
+-gpgpu_n_cores_per_cluster 1
+-gpgpu_n_mem 80
+-gpgpu_n_sub_partition_per_mchannel 2 
+-gpgpu_clock_gated_lanes 1
+
+# volta clock domains
+#-gpgpu_clock_domains <Core Clock>:<Interconnect Clock>:<L2 Clock>:<DRAM Clock>
+-gpgpu_clock_domains 1132.0:1132.0:1132.0:850.0
+# boost mode
+# -gpgpu_clock_domains 1628.0:1628.0:1628.0:850.0
+
+# shader core pipeline config
+-gpgpu_shader_registers 65536
+-gpgpu_registers_per_block 65536
+-gpgpu_occupancy_sm_number 70
+
+# This implies a maximum of 64 warps/SM
+-gpgpu_shader_core_pipeline 2048:32 
+-gpgpu_shader_cta 32
+-gpgpu_simd_model 1
+
+# Pipeline widths and number of FUs
+# ID_OC_SP,ID_OC_DP,ID_OC_INT,ID_OC_SFU,ID_OC_MEM,OC_EX_SP,OC_EX_DP,OC_EX_INT,OC_EX_SFU,OC_EX_MEM,EX_WB,ID_OC_TENSOR_CORE,OC_EX_TENSOR_CORE
+## Volta GV100 has 4 SP SIMD units, 4 SFU units, 4 DP units per core, 4 Tensor core units
+## we need to scale the number of pipeline registers to be equal to the number of SP units
+-gpgpu_pipeline_widths 4,4,4,4,4,4,4,4,4,4,8,4,4
+-gpgpu_num_sp_units 4
+-gpgpu_num_sfu_units 4
+-gpgpu_num_dp_units 4
+-gpgpu_num_int_units 4
+-gpgpu_tensor_core_avail 1
+-gpgpu_num_tensor_core_units 4
+
+# Instruction latencies and initiation intervals
+# "ADD,MAX,MUL,MAD,DIV"
+# All Div operations are executed on SFU unit
+-ptx_opcode_latency_int 4,13,4,5,145,21
+-ptx_opcode_initiation_int 2,2,2,2,8,4
+-ptx_opcode_latency_fp 4,13,4,5,39
+-ptx_opcode_initiation_fp 2,2,2,2,4
+-ptx_opcode_latency_dp 8,19,8,8,330
+-ptx_opcode_initiation_dp 4,4,4,4,130
+-ptx_opcode_latency_sfu 100
+-ptx_opcode_initiation_sfu 8
+-ptx_opcode_latency_tesnor 64
+-ptx_opcode_initiation_tensor 64
+
+# Volta has sub core model, in which each scheduler has its own register file and EUs
+# i.e. schedulers are isolated
+-gpgpu_sub_core_model 1
+# disable specialized operand collectors and use generic operand collectors instead
+-gpgpu_enable_specialized_operand_collector 0
+-gpgpu_operand_collector_num_units_gen 8
+-gpgpu_operand_collector_num_in_ports_gen 8
+-gpgpu_operand_collector_num_out_ports_gen 8
+# volta has 8 banks, 4 schedulers, two banks per scheduler
+# we increase #banks to 16 to mitigate the effect of Regisrer File Cache (RFC) which we do not implement in the current version
+-gpgpu_num_reg_banks 16
+-gpgpu_reg_file_port_throughput 2
+
+# shared memory bankconflict detection 
+-gpgpu_shmem_num_banks 32
+-gpgpu_shmem_limited_broadcast 0
+-gpgpu_shmem_warp_parts 1
+-gpgpu_coalesce_arch 70
+
+# Volta has four schedulers per core
+-gpgpu_num_sched_per_core 4
+# Greedy then oldest scheduler
+-gpgpu_scheduler lrr
+## In Volta, a warp scheduler can issue 1 inst per cycle
+-gpgpu_max_insn_issue_per_warp 1
+-gpgpu_dual_issue_diff_exec_units 1
+
+## L1/shared memory configuration
+# <sector?>:<nsets>:<bsize>:<assoc>,<rep>:<wr>:<alloc>:<wr_alloc>:<set_index_fn>,<mshr>:<N>:<merge>,<mq>:**<fifo_entry>
+# ** Optional parameter - Required when mshr_type==Texture Fifo
+# Defualt config is 160KB DL1 and 96KB shared memory
+# In Hopper, we assign the remaining shared memory to L1 cache 
+# # if the assigned shd mem = 0, then L1 cache = 256KB
+# For more info, see https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#shared-memory-7-x 
+# disable this mode in case of multi kernels/apps execution
+-gpgpu_adaptive_cache_config 1
+-gpgpu_shmem_option 0,8,16,32,64,96
+-gpgpu_unified_l1d_size 128
+# L1 cache configuration
+-gpgpu_l1_banks 8
+-gpgpu_cache:dl1  S:4:128:64,L:T:m:L:L,A:512:8,16:0,32
+-gpgpu_l1_cache_write_ratio 25
+-gpgpu_l1_latency 20
+-gpgpu_gmem_skip_L1D 0
+-gpgpu_flush_l1_cache 1
+-gpgpu_n_cluster_ejection_buffer_size 32
+# shared memory configuration
+-gpgpu_shmem_size 98304
+-gpgpu_shmem_sizeDefault 98304
+-gpgpu_shmem_per_block 65536
+-gpgpu_smem_latency 20
+
+# 64 sets, each 128 bytes 40-way for each memory sub partition (320 KB per memory sub partition). This gives us 50MB L2 cache
+-gpgpu_cache:dl2 S:64:128:40,L:B:m:L:P,A:192:4,32:0,32
+-gpgpu_cache:dl2_texture_only 0
+-gpgpu_dram_partition_queues 64:64:64:64
+-gpgpu_perf_sim_memcpy 1
+-gpgpu_memory_partition_indexing 0
+
+# 128 KB Inst.
+-gpgpu_cache:il1 N:64:128:16,L:R:f:N:L,S:2:48,4
+-gpgpu_inst_fetch_throughput 4
+# 128 KB Tex
+# Note, TEX is deprected in Volta, It is used for legacy apps only. Use L1D cache instead with .nc modifier or __ldg mehtod
+-gpgpu_tex_cache:l1 N:4:128:256,L:R:m:N:L,T:512:8,128:2
+# 64 KB Const
+-gpgpu_const_cache:l1 N:128:64:8,L:R:f:N:L,S:2:64,4
+-gpgpu_perfect_inst_const_cache 1
+
+# interconnection
+#-network_mode 1 
+#-inter_config_file config_volta_islip.icnt
+# use built-in local xbar
+-network_mode 2
+-icnt_in_buffer_limit 512
+-icnt_out_buffer_limit 512
+-icnt_subnets 2
+-icnt_flit_size 40
+-icnt_arbiter_algo 1
+
+# memory partition latency config 
+-gpgpu_l2_rop_latency 160
+-dram_latency 100
+
+# dram model config
+-gpgpu_dram_scheduler 1
+-gpgpu_frfcfs_dram_sched_queue_size 64
+-gpgpu_dram_return_queue_size 192
+
+# for HBM3, 5 stacks, 80 channels, each (64 bits) 8 bytes width
+-gpgpu_n_mem_per_ctrlr 1
+-gpgpu_dram_buswidth 8
+-gpgpu_dram_burst_length 2
+-dram_data_command_freq_ratio 2  # HBM is DDR
+-gpgpu_mem_address_mask 1
+-gpgpu_mem_addr_mapping dramid@8;00000000.00000000.00000000.00000000.0000RRRR.RRRRRRRR.RBBBCCCB.CCCSSSSS
+
+# HBM timing are adopted from hynix JESD235 standered and nVidia HPCA 2017 paper (http://www.cs.utah.edu/~nil/pubs/hpca17.pdf)
+# Timing for 1 GHZ
+# tRRDl and tWTR are missing, need to be added
+#-gpgpu_dram_timing_opt "nbk=16:CCD=1:RRD=4:RCD=14:RAS=33:RP=14:RC=47:
+#                        CL=14:WL=2:CDLR=3:WR=12:nbkgrp=4:CCDL=2:RTPL=4"
+
+# Timing for 850 MHZ, V100 HBM runs at 850 MHZ
+-gpgpu_dram_timing_opt "nbk=16:CCD=1:RRD=3:RCD=12:RAS=28:RP=12:RC=40:
+                        CL=12:WL=2:CDLR=3:WR=10:nbkgrp=4:CCDL=2:RTPL=3"
+
+# HBM has dual bus interface, in which it can issue two col and row commands at a time
+-dram_dual_bus_interface 1
+# select lower bits for bnkgrp to increase bnkgrp parallelism
+-dram_bnk_indexing_policy 0
+-dram_bnkgrp_indexing_policy 1
+
+#-dram_seperate_write_queue_enable 1
+#-dram_write_queue_size 64:56:32
+
+# stat collection
+-gpgpu_memlatency_stat 14 
+-gpgpu_runtime_stat 500
+-enable_ptx_file_line_stats 1
+-visualizer_enabled 0
+
+# tracing functionality
+#-trace_enabled 1
+#-trace_components WARP_SCHEDULER,SCOREBOARD
+#-trace_sampling_core 0