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@@ -197,7 +197,7 @@ accurate), and @code{T_data_transfer} is the estimated data transfer time. The
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latter is estimated based on bus calibration before execution start,
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latter is estimated based on bus calibration before execution start,
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i.e. with an idle machine, thus without contention. You can force bus re-calibration by running
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i.e. with an idle machine, thus without contention. You can force bus re-calibration by running
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@code{starpu_calibrate_bus}. The beta parameter defaults to 1, but it can be
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@code{starpu_calibrate_bus}. The beta parameter defaults to 1, but it can be
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-worth trying to tweak it by using @code{export STARPU_BETA=2} for instance,
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+worth trying to tweak it by using @code{export STARPU_SCHED_BETA=2} for instance,
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since during real application execution, contention makes transfer times bigger.
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since during real application execution, contention makes transfer times bigger.
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This is of course imprecise, but in practice, a rough estimation already gives
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This is of course imprecise, but in practice, a rough estimation already gives
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the good results that a precise estimation would give.
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the good results that a precise estimation would give.
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@@ -229,7 +229,7 @@ take it into account when distributing tasks. The target function that
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the @code{dmda} scheduler minimizes becomes @code{alpha * T_execution +
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the @code{dmda} scheduler minimizes becomes @code{alpha * T_execution +
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beta * T_data_transfer + gamma * Consumption} , where @code{Consumption}
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beta * T_data_transfer + gamma * Consumption} , where @code{Consumption}
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is the estimated task consumption in Joules. To tune this parameter, use
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is the estimated task consumption in Joules. To tune this parameter, use
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-@code{export STARPU_GAMMA=3000} for instance, to express that each Joule
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+@code{export STARPU_SCHED_GAMMA=3000} for instance, to express that each Joule
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(i.e kW during 1000us) is worth 3000us execution time penalty. Setting
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(i.e kW during 1000us) is worth 3000us execution time penalty. Setting
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@code{alpha} and @code{beta} to zero permits to only take into account power consumption.
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@code{alpha} and @code{beta} to zero permits to only take into account power consumption.
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