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Wednesday 16 December 2015

Parallella Board Notes (WIP)

SDHC cards tested;
Samsung 32GB Evo MicroSDHC (UHS-I Grade 1 Class 10)
SanDisk 16GB MicroSDHC (Class 4)

After burning headless image to SDHC card, use Putty to connect via SSH to the board.

Login to board - Username: Parallella Password: Parallella

Check SD card space with: df -h

Find root partition with: dmesg | grep "root"

Run fdisk to rebuilt the root partition: See https://parallella.org/forums/viewtopic.php?f=49&t=1373

Shutdown the board with: sudo shutdown -r now

Power off the board.

Power on the board and SSH login again with Putty.

Resize root partition with: sudo resize2fs /dev/mmcblk0p2

Check new SD card space with: df -h

Update system software with:
sudo apt-get update
sudo apt-get upgrade

Reboot the board: sudo reboot

Putty will lose connection. Restart putty and login (it may take time to reboot).

Update super-user password (make it something that's remembered, e.g. linaro)
sudo su
passwd
exit

Setup Git with user.name and user.email
https://help.github.com/articles/set-up-git/

git config --global push.default simple

Install cmake: sudo apt-get install cmake
Optional cmake-gui: sudo apt-get install cmake-qt-gui

Update cmake to latest:
wget https://cmake.org/files/v3.4/cmake-3.4.1.tar.gz
tar xvf cmake-3.4.1.tar.gz
cd cmake-3.4.1
cmake .
make
sudo make install
Add export CMAKE_ROOT=/usr/local/share/cmake-3.4/ to .bashrc (then shutdown and relogin)
Check cmake is version 3.4: cmake --version

Install eog for image viewing: sudo apt-get install eog


http://www.browndeertechnology.com/docs/app_note_epiphany_parallella_build.pdf

wget http://www.mr511.de/software/libelf-0.8.13.tar.gz
wget http://github.com/downloads/libevent/libevent/libevent-2.0.18-stable.tar.gz
wget http://www.hyperrealm.com/libconfig/libconfig-1.4.8.tar.gz

Extract all and usual; ./configure ; sudo make install
flex --version
bison --version
m4 --version

echo $PATH
echo $LD_LIBRARY_PATH
vi .bashrc (if /usr/local/lib not in the LD_LIBRARY_PATH and relogin)

cd ~
wget http://www.browndeertechnology.com/code/coprthr-1.6.0-parallella.tgz
tar xvf coprthr-1.6.0-parallella.tgz
sudo ./browndeer/scripts/uninstall_coprthr_parallella.sh
sudo ./browndeer/scripts/install_coprthr_parallella.sh

cd ~
wget https://github.com/browndeer/coprthr/archive/v1.6.0.tar.gz
tar xvf v1.6.0.tar.gz
cd coprthr-1.6.0
./configure --enable-epiphany --disable-clete
make
sudo make install
mkdir work
cp –R /usr/local/browndeer/examples ./work
cp –R /usr/local/browndeer/test ./work
cd ./work/test
su (required so tests can assess /dev/mmap)
export PATH=/usr/local/browndeer/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/browndeer/lib:/usr/local/lib:$LD_LIBRARY_PATH
make quicktest
exit
cd ../examples/parallella/hello_opencl
gcc hello_opencl.c -o hello_opencl.x -I/usr/local/browndeer/include -L/usr/local/browndeer/lib -lcoprthr -lcoprthr_opencl
./hello_opencl.x

Install Xming X Server for Windows - http://sourceforge.net/projects/xming/
Set "Enable X11 forwarding" option in Putty -> Connection -> SSH -> X11

Install SFML: sudo apt-get install libsfml-dev libsfml-graphics2 libsfml-system2 libsfml-window2 libfreetype6-dev libxcb-image0-dev libudev-dev

Grab OpenCL cl2.hpp file from https://www.khronos.org/registry/cl/api/2.1/cl2.hpp
Put the cl2.hpp into /usr/local/browndeer/include/CL directory
It MUST be version from 2.1 (older versions had bad 1.1 support)

To see gcc pre-processor defines: gcc -dM -E - < /dev/null