edcote

RISC-V System Software

Ignore the instructions to build GCC/Newlib toolchain. Consult this Linux/RISC-V installation manual instead.

Setup environment variables

module load riscv-tools/local

# old

export RISCV_SW=$CAD_ROOT/riscv-sw

edcote

Dot Files

Bash

• For consistent results, remove package bash-completion using yum remove

• Add directive shopt -s direxpand to file .bashrc for environment variables to expand to full path

• Add following to your ~/.inputrc file:

    "\e[A": history-search-backward  
  

"\e[B": history-search-forward

edcote

Google Compute Engine

CONSOLE

HOWTO

Cloud SDK install

For Ubuntu:

edcote

git clone https://github.com/coin-or/CoinUtils.git git clone https://github.com/coin-or/Osi.git git clone https://github.com/coin-or/Clp.git git clone https://github.com/coin-or/Cbc.git git clone https://github.com/coin-or/Cgl.git

cd CoinUtils make clean; ./configure --prefix=/opt/coin-or && make -j8 && sudo make install cd ..

edcote

Notes taken from: http://palms.ee.princeton.edu/system/files/Chisel+Overview.pdf

Datatypes

• SInt, UInt, Bool, Clock

• Examples:

val a = 5.S // signed decimal 4-bit lit from Scala Int

edcote

NFS

Ubuntu community site has best info: https://help.ubuntu.com/community/SettingUpNFSHowTo

Service setup

1. Remove all mounts from /etc/fstab

2. Enable nfs-common and nfs-server services:

edcote

High-Vt, Low-Vt, Standard-Vt. Used to implement multi-threshold low power techniques. info

• HVT: less power, worse timing, used for power critical functions.
• LVT: more power, better timing, used in timing critical functions
• SVT: offers tradeoff between LVT and HVT

Subthreshold condution is one component of leakage. The amount of subthreshold conduction is set by the threshold voltgage, which sits between ground and the supply voltage.

From Multi-channel length:

edcote

• Liberty (LIB) defines PVT, timing, power, noise, and other characteristics of cell library
• Liberty Exchange Foramt (LEF) includes design rules and abstract information about cells
• Design Exchange Format (DEF) represents the netlist and circuit layout

edcote

Goal

• To deploy riscv-ci on docker, with preserved data.

  mkdir -p docker/riscv-ci cd docker/riscv-ci

Docker and Jenkins setup

• Create an image on top of the Jenkins image with log, cache directories and java opts

edcote

Firewall setup

Ubuntu

Official wiki has excellent documentation.

Example commands:

sudo ufw allow ssh/tcp