Vortex RISC-V GPGPU

Vortex is a full-system RISCV-based GPGPU processor.

Specifications

• Support RISC-V RV32IMF ISA
• Performance:
  • 1024 total threads running at 250 MHz
  • 128 Gflops of compute bandwidth
  • 16 GB/s of memory bandwidth
• Scalability: up to 64 cores with optional L2 and L3 caches
• Software: OpenCL 1.2 Support
• Supported FPGAs:
  • Intel Arria 10
  • Intel Stratix 10

Directory structure

• doc: Documentation.

• hw: Hardware sources.

• driver: Host drivers repository.

• runtime: Kernel Runtime software.

• sim: Simulators repository.

• tests: Tests repository.

• ci: Continuous integration scripts.

• miscs: Miscellaneous resources.

Basic Installation

Install development tools

$ sudo apt-get install build-essential
$ sudo apt-get install git

Install gnu-riscv-tools

$ export RISCV_TOOLCHAIN_PATH=/opt/riscv-gnu-toolchain

$ sudo apt-get -y install \
    binutils build-essential libtool texinfo \
    gzip zip unzip patchutils curl git \
    make cmake ninja-build automake bison flex gperf \
    grep sed gawk python bc \
    zlib1g-dev libexpat1-dev libmpc-dev \
    libglib2.0-dev libfdt-dev libpixman-1-dev 
$ git clone https://github.com/riscv/riscv-gnu-toolchain
$ cd riscv-gnu-toolchain
$ git submodule update --init --recursive
$ mkdir build
$ cd build    
$ ../configure --prefix=$RISCV_TOOLCHAIN_PATH --with-arch=rv32im --with-abi=ilp32
$ make -j`nproc`  
$ make -j`nproc` build-qemu

Install Verilator

You need into build the latest version using the instructions on their website
$ https://www.veripool.org/projects/verilator/wiki/Installing 

Install Vortex

$ git clone --recursive https://github.com/vortexgpgpu/vortex.git
$ cd Vortex
$ make

Quick Test running OpenCL vecadd sample on 2 cores

$ ./ci/blackbox.sh --cores=2 --app=vecadd