HW VDF #148
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HW VDF #148
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Use artificial delays only with emulated hardware.
Do reduction more frequently to avoid a rare case of failure during reduction of a too large quadratic form.
Update init_hw to use standard Open().
Add stubs for I2C read/write and setting PLL frequency.
Take into account that elapsed time may be zero.
The race condition may happen when one thread resizes the 'values' array in hw_proof_value_at() and another accesses the not-yet-initialized member.
Update data type of 'aux_threads_busy' to uint64_t, fix a crash when the number of auxiliary threads exceeds 32.
Restart the VDF from the last checkpoint value.
This feature is disabled by default and could be enabled by specifying --auto-freq-period option.
Remove PLL entries with duplicate frequencies computed incorrectly due to rounding errors.
Use the name matching the name of the library being used.
Use a threshold of 10 repeated iteration counts in a row to invoke hardware error handling.
The number of seconds is specified as an argument of --auto-freq-period option.
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