leobago/sdcfinder

SDCfinder

This tool aims to detect Silent Data Corruption (SDC) ocurring in supercomputers and large datacenters. The current implementation is in C but we will be adding a Python version soon. We also are planning to cover GPU memory as well. The way this tool works is rather simple. At the begining of the execution two hexadecimal paterns will be selected randomly. Then it allocates a large buffer of the available memory. Then, it will iterate doing the three following actions: write, sleep and read. When reading it will check whether any of the read patterns is different from the one written, if it is the case it will log it as a detected SDC. The next iteration the second pattern will be used for writing and it will continue swtiching between both paterns until the end of the execution.

sdcfinder's Issues

CMAKE version (2.6) required is too old

CMake version 2.6 is too old, and accessing cmake documentation of versions older than 3.0 is a bit tricky.

List of CMake versions in some BSC machines:

• Marenostrum: 3.5.2 (default), 3.8.2, 3.9.2, 3.9.6
• Minotauro: 2.8.5 (default), 3.2.1, 3.6.2, 3.7.0, 3.7.2, 3.9.6
• Nord3: 2.6 (default), 2.8.10, 2.8.12, 3.2.3, 3.5.0, 3.6.2, 3.7.1, 3.10.0
• CTE-Power8: 3.8.0, 3.8.1, 3.9.6

For everyones sanity I would advise on upgrading CMake minimum version required to at least (3.0).

Implement GPU memory checks

MemoryReliability binary installation directory

A general unix convention is to install binaries on '/bin directories. But the current cmake behaviour installs the MemoryReliability into /usr/local/ instead of /usr/local/bin:

$ make install
[ 83%] Built target MRlib
[100%] Built target MemoryReliability
Install the project...
-- Install configuration: ""
-- Installing: /usr/local/MemoryReliability

Is this an error or on purpose?

doxygen

we could add a doxygen.