fix: fix success rate calculation

[cquil11]

The logic in utils/calculate_success_rate.py was broken.

Now, instead of hard-coding the total possible calculations for each GPU, simply count all of the attempted job runs and all of the successful job runs for each GPU.

Full Sweep Test Example:
https://github.com/InferenceMAX/InferenceMAX/actions/runs/18265141263/job/51998546795#logs
Successfully calculates success rates of a reduced H100 sweep.

Additional Examples:

• https://github.com/InferenceMAX/InferenceMAX/actions/runs/18180663482
  • Has one failed mi355 run

❯ export GITHUB_TOKEN=<redacted> GITHUB_RUN_ID=18180663482 GITHUB_REPOSITORY="InferenceMAX/InferenceMAX"
❯ python3 utils/calc_success_rate.py run_stats
Authenticated as user: cquil11
Found repo: InferenceMAX/InferenceMAX
Found run: 18180663482 - Full Sweep Scheduler - 8k1k

============================================================
GPU Success Rates
============================================================
GPU        Success    Total      Rate      
------------------------------------------------------------
b200       164        164        100.00    %
gb200      3          3          100.00    %
h100       30         30         100.00    %
h200       94         94         100.00    %
mi300x     45         45         100.00    %
mi325x     45         45         100.00    %
mi355x     74         75         98.67     %
============================================================

❯ cat run_stats.json
{
  "h100": {
    "n_success": 30,
    "total": 30
  },
  "h200": {
    "n_success": 94,
    "total": 94
  },
  "gb200": {
    "n_success": 3,
    "total": 3
  },
  "mi300x": {
    "n_success": 45,
    "total": 45
  },
  "mi325x": {
    "n_success": 45,
    "total": 45
  },
  "mi355x": {
    "n_success": 74,
    "total": 75
  },
  "b200": {
    "n_success": 164,
    "total": 164
  }
}

[kimbochen]

Looks great, thank you so much!
Did you set the GitHub env vars, e.g. GITHUB_TOKEN etc?

[cquil11]

Looks great, thank you so much! Did you set the GitHub env vars, e.g. GITHUB_TOKEN etc?

I think they are set by the runner setup automatically. Checking now in the test run.

[kimbochen]

lgtm