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torch.set_warn_always

function set_warn_always(mode: boolean): void

Enable or disable "always warn" mode for all warnings.

When enabled, all warnings are logged regardless of other settings. This is a global setting that applies to all warning categories, including determinism violations, numerical instabilities, and other advisories.

Modes:

true: Always log all warnings (verbose)
false (default): Log warnings selectively based on other settings

Use Cases:

Debugging: Enable to see all potential issues
Strict mode: Use with error modes for defensive programming
Production: Disable to reduce log spam

Global setting: Affects all warnings throughout execution
Can be toggled: Change at any time during runtime
Combines with other settings: Works alongside determinism warnings

Parameters

modeboolean: If true, enable always-warn; if false, follow normal warning rules

Returns

void

Examples

// Enable verbose warnings for debugging
torch.set_warn_always(true);
const result = torch.someOp(input);  // All warnings shown

// Production mode - normal warnings only
torch.set_warn_always(false);
const predictions = model.forward(test_data);

// Check current setting
if (torch.is_warn_always_enabled()) {
  console.log('Running in verbose warning mode');
}

See Also

PyTorch torch.set_warn_always()
is_warn_always_enabled - Check if always-warn is enabled
set_deterministic_debug_mode - Set determinism warning level

set_printoptions