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@@ -1329,6 +1329,10 @@ use on-line calibration. StarPU will automatically calibrate codelets
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which have never been calibrated yet. To force continuing calibration, use
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@code{export STARPU_CALIBRATE=1} . To drop existing calibration information
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completely and re-calibrate from start, use @code{export STARPU_CALIBRATE=2}.
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+Note: due to CUDA limitations, to be able to measure kernel duration,
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+calibration mode needs to disable asynchronous data transfers. Calibration thus
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+disables data transfer / computation overlapping, and should thus not be used
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+for eventual benchmarks.
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@node Task distribution vs Data transfer
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@section Task distribution vs Data transfer
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