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Message-ID: <CAKGDhHV-6ijnWOtG=_dCFmAzBsr3QFRs2gFkt+fFbRV6EcKaEg@mail.gmail.com>
Date: Wed, 8 Jul 2015 11:23:12 +0200
From: Agnieszka Bielec <bielecagnieszka8@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: PHC: Lyra2 on GPU
2015-07-08 4:15 GMT+02:00 magnum <john.magnum@...hmail.com>:
> On 2015-07-06 10:25, Solar Designer wrote:
>>
>> On Mon, Jul 06, 2015 at 01:15:54AM +0200, magnum wrote:
>>>
>>> Thinking loud. Current behavior, for a test run we have:
>>> reset(NULL)
>>> self-tests
>>> benchmarks
>>>
>>> And for a crack run we have:
>>> reset(NULL)
>>> self-tests
>>> reset(db)
>>> crack mode
>>>
>>> We could change it to always pass "db" to reset(). It could still *be*
>>> NULL but we'd never call it with an explicit NULL.
>>>
>>> A test run would be effectively the same. A crack run would become:
>>> reset(db)
>>> self-tests
>>> reset(db)
>>> crack mode
>>>
>>> This would solve this issue but a side-effect is reset() can no longer
>>> tell whether we're about to self-test before a crack or actually run
>>> one. For resolving that we could simply change
>>>
>>> void fmt_reset(struct db_main *db);
>>>
>>> ...to
>>>
>>> void fmt_reset(struct db_main *db, int self_test);
>>>
>>> ...and a crack run would change to:
>>> reset(db, 1)
>>> self-tests
>>> reset(db, 0)
>>> crack mode
>>>
>>> Does this make sense?
>>
>>
>> Yes, this makes sense to me. Would we actually need to add this "int
>> self_test"? The few formats that care would be able to count the
>> reset() calls on their own, perhaps with the counter reset on init().
>
>
> This is implemented now (without the "int self_test") in 38af431 (formats in
> e19d87e).
>
> Agnieszka, you will likely have to adopt your code a little for it to work
> at all.
I'm not sure if I understand correctly. now, in the first reset() I
have to autotune not for self-tests but only for cracking mode and
not autotune in the second reset()?
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