Job matrix¶

The job matrix is the killer view for sweep batches: a model × dataset grid where each cell is one job. It takes a deliberately calm approach — the default state is white cells with a thin grey border; emphasis is reserved for two cells per matrix.

Layout¶

              dataset₁    dataset₂    dataset₃    dataset₄
            ┌─────────┬─────────┬─────────┬─────────┐
   model₁   │  0.382  │  0.412  │  0.470  │  0.521  │
            ├─────────┼─────────┼─────────┼─────────┤
   model₂   │  0.354  │  0.394  │ 🏆 0.341│  0.488  │  ← global best (green border, trophy)
            ├─────────┼─────────┼─────────┼─────────┤
   model₃   │  0.415  │  0.510  │  0.499  │ ⚠ 0.612 │  ← global worst (red border, warning)
            └─────────┴─────────┴─────────┴─────────┘

The unit is the whole matrix, not per-row or per-column. There is at most one global best and one global worst per primary metric.

Cell decoration¶

Each cell carries:

White background + thin grey border by default. Calm reading.
A status dot in the top-right corner (the unified 5-bucket palette shared with cards and badges) — but clean done cells without idle-flag get no dot, since "this run finished" doesn't need decoration.
Best cell (one global): thicker green border + trophy icon.
Worst cell (one global): thicker red border + warning icon.

Best/worst eligibility¶

Only cells that satisfy all of these are eligible:

status === 'done' (running / failed / stalled cells are ineligible).
is_idle_flagged === false (a run that stalled mid-training cannot win).
The primary metric value is finite (Number.isFinite).

Direction (lower-is-better / higher-is-better) is configured per metric. With ≤1 eligible cell, no highlight is drawn. Ties (≥2 cells share the best or worst value) are also skipped — celebrating any one would be misleading.

Primary metric¶

The primary metric is the column the global best/worst is computed over. By default it's the first metric a project's jobs report; set explicitly in Project settings → Primary metric.

Hyperparameter / metric columns¶

The toolbar Columns button picks which metric and hyperparameter columns to show. Long values truncate; hover for the full string. Choices persist per user per batch.

CSV export¶

The Export CSV button emits the visible columns and current sort. The result opens cleanly in pandas / Excel — the simplest path from "I ran a sweep" to "I have a paper table".