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@ -2892,6 +2892,54 @@ static void autotune (hc_device_param_t *device_param)
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}
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}
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// final balance
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const double exec_ms = try_run (device_param, kernel_accel, kernel_loops, 1);
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e_best = exec_ms;
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u32 kernel_accel_try = kernel_accel;
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u32 kernel_loops_try = kernel_loops;
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for (int i = 0; i < 2; i++)
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{
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kernel_accel_try >>= 1;
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kernel_loops_try <<= 1;
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if (kernel_accel_try < kernel_accel_min) break;
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if (kernel_loops_try > kernel_loops_max) break;
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const double exec_ms = try_run (device_param, kernel_accel_try, kernel_loops_try, 1);
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if (exec_ms > e_best) break;
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kernel_accel = kernel_accel_try;
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kernel_loops = kernel_loops_try;
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e_best = exec_ms;
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}
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kernel_accel_try = kernel_accel;
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kernel_loops_try = kernel_loops;
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for (int i = 0; i < 2; i++)
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{
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kernel_accel_try <<= 1;
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kernel_loops_try >>= 1;
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if (kernel_accel_try > kernel_accel_max) break;
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if (kernel_loops_try < kernel_loops_min) break;
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const double exec_ms = try_run (device_param, kernel_accel_try, kernel_loops_try, 1);
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if (exec_ms > e_best) break;
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kernel_accel = kernel_accel_try;
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kernel_loops = kernel_loops_try;
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e_best = exec_ms;
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}
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// reset timer
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device_param->exec_pos = 0;
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