SingleInstanceTestSuite

This repository currently documents the stress_malloc Message Passing test suite.

Suite Layout

• stress_malloc/: forward MP variants
• stress_malloc/reverse/: reverse MP variants

All test source files use the mp_... naming scheme and build to matching .out executables.

Build

Build forward variants:

make -C stress_malloc

Build reverse variants:

make -C stress_malloc/reverse

Clean:

make -C stress_malloc clean
make -C stress_malloc/reverse clean

Running One Test

Each stress_malloc executable takes six arguments:

1. Array size
2. Number of iterations
3. X index
4. Y index
5. Number of CPU stress threads
6. Stress array size

Example:

./stress_malloc/mp_fwd_com-dev__p-rlx__c-rlx.out 12000 2000 9 1000 5 20000

Running All MP Variants

Use:

python3 run-all.py

What it does:

• discovers all mp_*.out executables under stress_malloc/ and stress_malloc/reverse/
• runs them continuously in an infinite loop
• records every run in results_<timestamp>.csv
• stops cleanly on Ctrl-C or termination
• prints a summary at shutdown

The default command used for each executable is:

./<executable> 12000 1000000 9 1000 5 20000

Notes

• GPU memory stress is currently hardcoded in the CUDA sources.
• CPU stress thread count and stress array size are runtime parameters.
• Several variants differ only in memory order, fence placement, scope, or forward vs reverse orientation.
• The full variant naming rationale is documented in STRESS_MALLOC.md.