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authorVijayKandiah <[email protected]>2021-10-17 02:18:10 -0500
committerVijayKandiah <[email protected]>2021-10-17 02:18:10 -0500
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treee82f15238e79a03f3cc2435d4f9bb48d5023e8ae /src/gpuwattch/cacti/README
parent4a4fc87a2dcd95bfe298f2b3d18a9833a506e499 (diff)
AccelWattch dev Integration
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------------------------------------------------------------
- ____ _ ____ _____ ___ __ ____
- / ___| / \ / ___|_ _|_ _| / /_ | ___|
- | | / _ \| | | | | | | '_ \ |___ \
- | |___ / ___ \ |___ | | | | | (_) | ___) |
- \____/_/ \_\____| |_| |___| \___(_)____/
-
-
- A Tool to Model Caches/Memories
------------------------------------------------------------
-
-CACTI is an analytical tool that takes a set of cache/memory para-
-meters as input and calculates its access time, power, cycle
-time, and area.
-CACTI was originally developed by Dr. Jouppi and Dr. Wilton
-in 1993 and since then it has undergone five major
-revisions.
-
-List of features (version 1-6.5):
-===============================
-The following is the list of features supported by the tool.
-
-* Power, delay, area, and cycle time model for
- direct mapped caches
- set-associative caches
- fully associative caches
- Embedded DRAM memories
- Commodity DRAM memories
-
-* Support for modeling multi-ported uniform cache access (UCA)
- and multi-banked, multi-ported non-uniform cache access (NUCA).
-
-* Leakage power calculation that also considers the operating
- temperature of the cache.
-
-* Router power model.
-
-* Interconnect model with different delay, power, and area
- properties including low-swing wire model.
-
-* An interface to perform trade-off analysis involving power, delay,
- area, and bandwidth.
-
-* All process specific values used by the tool are obtained
- from ITRS and currently, the tool supports 90nm, 65nm, 45nm,
- and 32nm technology nodes.
-
-Version 6.5 has a new c++ code base and includes numerous bug fixes.
-CACTI 5.3 and 6.0 activate an entire row of mats to read/write a single
-block of data. This technique improves reliability at the cost of
-power. CACTI 6.5 activates minimum number of mats just enough to retrieve
-a block to minimize power.
-
-How to use the tool?
-====================
-Prior versions of CACTI take input parameters such as cache
-size and technology node as a set of command line arguments.
-To avoid a long list of command line arguments,
-CACTI 6.5 lets users specify their cache model in a more
-detailed manner by using a config file (cache.cfg).
-
--> define the cache model using cache.cfg
--> run the "cacti" binary <./cacti -infile cache.cfg>
-
-CACTI6.5 also provides a command line interface similar to earlier versions
-of CACTI. The command line interface can be used as
-
-./cacti cache_size line_size associativity rw_ports excl_read_ports excl_write_ports
- single_ended_read_ports search_ports banks tech_node output_width specific_tag tag_width
- access_mode cache main_mem obj_func_delay obj_func_dynamic_power obj_func_leakage_power
- obj_func_cycle_time obj_func_area dev_func_delay dev_func_dynamic_power dev_func_leakage_power
- dev_func_area dev_func_cycle_time ed_ed2_none temp wt data_arr_ram_cell_tech_flavor_in
- data_arr_peri_global_tech_flavor_in tag_arr_ram_cell_tech_flavor_in tag_arr_peri_global_tech_flavor_in
- interconnect_projection_type_in wire_inside_mat_type_in wire_outside_mat_type_in
- REPEATERS_IN_HTREE_SEGMENTS_in VERTICAL_HTREE_WIRES_OVER_THE_ARRAY_in
- BROADCAST_ADDR_DATAIN_OVER_VERTICAL_HTREES_in PAGE_SIZE_BITS_in BURST_LENGTH_in
- INTERNAL_PREFETCH_WIDTH_in force_wiretype wiretype force_config ndwl ndbl nspd ndcm
- ndsam1 ndsam2 ecc
-
-For complete documentation of the tool, please refer CACTI-5.3 and 6.0
-technical reports and the following paper,
-"Optimizing NUCA Organizations and Wiring Alternatives for
-Large Caches With CACTI 6.0", that appears in MICRO 2007.
-
-We are still improving the tool and refining the code. If you
-have any comments, questions, or suggestions please write to
-us.
-
-Naveen Muralimanohar Jung Ho Ahn Sheng Li
-
-
-
-