device_param->speed_cnt[speed_pos] = perf_sum_all;
device_param->speed_ms[speed_pos] = speed_ms;
+
+ if (data.benchmark == 1)
+ {
+ if (speed_ms > 4096) data.devices_status = STATUS_ABORTED;
+ }
}
if (opts_type & OPTS_TYPE_HOOK23)
exec_ms_best = MIN (exec_ms_best, exec_ms_cur);
}
- if (exec_ms_final == 0) exec_ms_final = exec_ms_best;
-
if (exec_ms_best < target_ms) break;
}
}
}
- // sometimes we're in a bad situation that the algorithm is so slow that we can not
- // create enough kernel_accel to do both, keep the gpu busy and stay below target_ms.
- // however, we need to have a minimum kernel_accel and kernel_loops of 32.
- // luckily, at this level of workload, it became a linear function
-
- while (kernel_accel < 32 && kernel_loops >= 32)
- {
- const u32 kernel_accel_try = kernel_accel * 2;
- const u32 kernel_loops_try = kernel_loops / 2;
-
- if (kernel_accel_try > kernel_accel_max) break;
- if (kernel_loops_try < kernel_loops_min) break;
-
- kernel_accel = kernel_accel_try;
- kernel_loops = kernel_loops_try;
- }
-
- // finally there's a chance that we have a fixed kernel_loops but not a fixed kernel_accel
+ // there's a chance that we have a fixed kernel_loops but not a fixed kernel_accel
// in such a case the above function would not create any change
// we'll use the runtime to find out if we're allow to do last improvement
if (exec_ms_final > 0)
{
- if (exec_ms_final < target_ms)
+ if ((exec_ms_final * 2) <= target_ms)
{
const double exec_left = target_ms / exec_ms_final;
const double accel_left = kernel_accel_max / kernel_accel;
- const double exec_accel_min = MIN (exec_left, accel_left);
+ const int exec_accel_min = MIN (exec_left, accel_left); // we want that to be int
if (exec_accel_min >= 2)
{
}
}
+ // sometimes we're in a bad situation that the algorithm is so slow that we can not
+ // create enough kernel_accel to do both, keep the gpu busy and stay below target_ms.
+ // however, we need to have a minimum kernel_accel and kernel_loops of 32.
+ // luckily, at this level of workload, it became a linear function
+
+ if (kernel_accel < 32 || kernel_loops < 32)
+ {
+ const u32 kernel_power = kernel_accel * kernel_loops;
+
+ // find sqrt
+
+ u32 sqrtv;
+
+ for (sqrtv = 1; sqrtv < 0x100000; sqrtv++)
+ {
+ if ((sqrtv * sqrtv) >= kernel_power) break;
+ }
+
+ const u32 kernel_accel_try = sqrtv;
+ const u32 kernel_loops_try = sqrtv;
+
+ if ((kernel_accel_try <= kernel_accel_max) && (kernel_loops_try >= kernel_loops_min))
+ {
+ kernel_accel = kernel_accel_try;
+ kernel_loops = kernel_loops_try;
+ }
+ }
+
// reset timer
device_param->exec_pos = 0;
* some algorithms have a maximum kernel-loops count
*/
- /*
if (attack_exec == ATTACK_EXEC_OUTSIDE_KERNEL)
{
if (data.salts_buf[0].salt_iter < device_param->kernel_loops_max)
device_param->kernel_loops_max = data.salts_buf[0].salt_iter;
}
}
- */
/**
* some algorithms need a special kernel-accel