A high-level performance analysis tool for FPGA-based accelerator.
Assume you have the following directory structure (windows setup is similar):
$HOME ~/llvm ~/llvm/tools/clang ~/llvm/tools/lin-analyzer ~/build ~/boost_1_57_0
- LLVM and clang 3.5:
wget http://llvm.org/releases/3.5.0/llvm-3.5.0.src.tar.xz wget http://llvm.org/releases/3.5.0/cfe-3.5.0.src.tar.xz tar -xvf llvm-3.5.0.src.tar.xz mv llvm-3.5.0.src llvm tar -xvf cfe-3.5.0.src.tar.xz mv cfe-3.5.0.src clang cp -r clang llvm/tools
cd ~/llvm/tools git clone email@example.com:zhguanw/lin-analyzer.git open ~/llvm/tools/CMakeLists.txt and add "add_llvm_tool_subdirectory(lin-analyzer)" to it open ~/llvm/CMakeLists.txt and add "set(LLVM_REQUIRES_RTTI 1)" to enable RTTI feature
- Boost graph library:
cd ~ wget http://softlayer-sng.dl.sourceforge.net/project/boost/boost/1.57.0/boost_1_57_0.tar.gz tar -xvf boost_1_57_0.tar.gz
- zlib library, version 1.2.8
sudo apt-get install zlib1g-dev
sudo apt-get install cmake
(I use version 220.127.116.11, higher version should be fine)
- Install Lin-Analyzer
cd ~ mkdir build cd ~/build cmake ~/llvm -DBOOST_INCLUDE_DIR=/your-path-to/boost_1_57_0 -DZLIB_INCLUDE_DIRS=/usr/include -DZLIB_LIBRARY=/usr/lib/x86_64-linux-gnu/libz.so
I use cygwin, so the first three steps above are the same.
- Install Visual Studio 2013 (32-bit or 64-bit)
- zlib 1.2.8:
(a). Download zlib from http://zlib.net/zlib-1.2.8.tar.gz and uncompress it (b). vim your_path_to\zlib-1.2.8\contrib\masmx86\bld_ml32.bat ml.exe /coff /Zi /c /Flmatch686.lst match686.asm ml.exe /coff /Zi /c /Flinffas32.lst inffas32.asm (c). Set Visual Studio to the system environment: PATH = %PATH:your_path_to\Microsoft Visual Studio 13.0\VC\bin (d). Open zlibvc.sln using vs2013 located at your_path_to\zlib-1.2.8\contrib\vstudio\vc11 (e). Open properties of zlibstat project and remove "ZLIB_WINAPI;" from "Configuration Properties -> C/C++ -> Preprocessor -> Preprocessor Definitions" (f). If you generate 64-bit lin-analyzer, then you also need to generate 64-bit zlib library. To do this, you need to Open "Configuration Manager" and change "Win32" to "x64" under "Platform" (g). Build the static library. (h). After successfully building the zlib static library, you need to specify its absolute path for ZLIB_INCLUDE_DIRS and ZLIB_LIBRARY variables in cmake.
- Install cmake 18.104.22.168
Use cmake to compile llvm and setup Visual Studio project files Will update detailed instructions soon...
- Lin-Analyzer options
Usage: lin-analyzer [file.bc] -Ipath=[path] -config=[filename] [kernel-name] -Opath=[path] -TargetLoops=[index] [options] Options: -h, --help Help information. -profiling-time Profile kernels without FPGA estimation. -mem-trace Obtain memory trace for access pattern analysis without FPGA estimation. This option should be used with -profiling-time together. -no-trace Disable dynamic trace generation. -TargetLoops Specify target loops focused. Eg., -TargetLoops=2,3: only analyse loop 2 and 3. -cfg-detailed Show CFG with detailed instructions. -cfg-only Show CFG only with basic blocks. -dddg-bf-opt Show DDDG before optimization. May slow down program if input size is large -dddg-af-opt Show DDDG after optimization. May slow down program if input size is large -verbose Verbose mode, print more information. -dis-store-buffer Disable store-buffer optimization. -shared-load-removal Enable shared-load-removal optimization. -dis-shared-load-removal Disable shared-load-removal opt., even for completely unrolling config. -dis-rp-store-removal Disable repeated-store-removal optimization. -THR-float Enable tree height reduction optimization for floating point operations. -THR-integer Enable tree height reduction optimization for integer operations. -memory-disambig Enable memory disambiguation optimization. -dis-fp-threshold Disable floating point unit threshold and area budget is unlimited. -en-extra-scalar Sometimes, result might be shifted, this option is used to improve prediction. -en-rw-rw-memory Use memory with two ports and each supports read and write operation. Default is read-only and read-write. -vc707 Target for Xilinx Virtex7 VC707. Default is Xilinx Zedboard or ZC702
- Design Space Exploration
export BOOST_ROOT=~/boost_1_57_0 export LD_LIBRARY_PATH=~/build/bin/lib export LLVM_BIN_HOME=~/build/bin export LLVM_SRC=~/llvm export TESTBENCH_HOME=~/llvm/tools/lin-analyzer/testsuite/Ecobench cd ~/llvm/tools/lin-analyzer/testsuite/Ecobench/scripts python run_dse.py
Similar to Linux command, but use Visual Studio; Will update it soon...
Lin-Analyzer is licensed under the GPL-3.0 license.
Dynamic data graph generation (DDDG) and few of optimization functions in Lin-Analyzer are modified from Aladdin project and Lin-Analyzer is also followed Aladdin's license. For more information, please visit Aladdin's website: https://github.com/ysshao/ALADDIN
If you use Lin-Analyzer in your research, please cite
Lin-Analyzer: A High-level Performance Analysis Tool for FPGA-based Accelerators, Guanwen Zhong, Alok Prakash,Yun Liang, Tulika Mitra, Smail Niar, 53rd ACM/IEEE Design Automation Conference, June 2016
Guanwen (Henry) Zhong,
National University of Singapore, 2016