GreenWaves Technologies software test

Technical levels

Depending on the position you applied for you will need to follow different instructions.

The levels are:

1. intern
2. new graduate
3. experienced

You need to follow instructions of up to your level. For example, a new graduate needs to follow "intern" and "new graduate" instructions.

Instructions

This code should run on GAP8 GVSoC.

1. (intern) Write a program which would make all the cores print “hello world [cluster_id, core_id]”.
2. (intern) Write a bash script named launch.sh that compiles and launches your code.
3. (intern) Write a program which copy two square matrices (minimum size 64x64) of type unsigned short from L2 memory to L1 memory. Then produce the results of the two following operations by using the cluster and send the result matrices from the L1 to L2:
   • Addition of the 2 matrices
   • Multiplication of the 2 matrices
4. (new graduate) Extend the previous launch.sh script to accept a matrix size parameter. For example, entering ./launch.sh -s 128 will select a matrix size of 128x128. Use a default value of 64 when size is not specified.
5. (new graduate) Using the result of the matrices multiplication above, do a convolution of this matrix with the filter below: unsigned short filter[9] = {-1, -2, -1, 0, 0, 0, 1, 2, 1};
6. (experienced) Optimize all previous operations as efficiently as possible.