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Vortex GPGPU

Vortex is a full-stack open-source RISC-V GPGPU.

Specifications

  • Support RISC-V RV32IMAF and RV64IMAFD
  • Microarchitecture:
    • configurable number of cores, warps, and threads.
    • configurable number of ALU, FPU, LSU, and SFU units per core.
    • configurable pipeline issue width.
    • optional local memory, L1, L2, and L3 caches.
  • Software:
    • OpenCL 1.2 Support.
  • Supported FPGAs:
    • Altera Arria 10
    • Altera Stratix 10
    • Xilinx Alveo U50, U250, U280
    • Xilinx Versal VCK5000

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.

Build Instructions

More detailed build instructions can be found here.

Supported OS Platforms

  • Ubuntu 18.04, 20.04
  • Centos 7

Toolchain Dependencies

Install development tools

$ sudo apt-get install build-essential
$ sudo apt-get install binutils
$ sudo apt-get install python
$ sudo apt-get install uuid-dev
$ sudo apt-get install git

Install Vortex codebase

$ git clone --depth=1 --recursive https://github.com/vortexgpgpu/vortex.git
$ cd Vortex

Configure your build folder

# By default, the toolchain default install location is the /opt folder and can be overridden by setting --tooldir.
$ mkdir build
$ cd build
$ ../configure --xlen=32 --tooldir=$HOME/tools

Install prebuilt toolchain

$ ./ci/toolchain_install.sh --all

set environment variables

# should always run before using the toolchain!
$ source ./ci/toolchain_env.sh

Building Vortex

$ make -s

Quick demo running vecadd OpenCL kernel on 2 cores

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

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