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@@ -1248,6 +1248,10 @@ It will also save it in @code{~/.starpu/sampling/codelets}
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for further executions, and can be observed by using the
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@code{starpu_perfmodel_display} command. The models are indexed by machine name. To share the models between machines (e.g. for a homogeneous cluster), use @code{export STARPU_HOSTNAME=some_global_name}. The following is a small code example.
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+If e.g. the code is recompiled with other compilation options, or several
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+variants of the code are used, the symbol string should be changed to reflect
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+that, in order to recalibrate the model from zero.
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+
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@cartouche
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@smallexample
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static struct starpu_perfmodel_t mult_perf_model = @{
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