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Date: Wed, 21 Aug 2013 14:03:58 +0400
From: Solar Designer <>
Subject: Re: Rafael's weekly report #10

Rafael, Katja, Lukas -

On Wed, Aug 21, 2013 at 05:47:55AM +0100, Rafael Waldo Delgado Doblas wrote:
> Accomplishments:
> 1. I remove the blockcpys from smix as Alexander suggested


> but I couldn't see any improvement.

Not good.

> The code is already updated in my github repo.

Please include the URL or/and git command on your reports, so that more
people in here can potentially take a look and comment.

> 2. I started to check Epiphany ASM.


>  Priorities:
> 1. Start to write asm code.

This is premature in terms of code optimization - you ought to achieve
better performance in C first - but experimenting with asm is OK for the
sake of learning it.

On the other hand, this whole task (Litecoin mining on Epiphany) should
have been completed by now...

> BTW The code is more than 7M and there is 1M of preinitialised data that I

You mean 7k and 1k, right?

> don?t know where it comes from (even if I have an empty main it stays
> there) and another mega that comes from something that shouldn't be
> initialised this is "volatile shared_buf_t M[16] SECTION("shared_dram");"
> the shared buffer. This means that we have 9784Bs occupied by the binary
> image I we will need at least reduce 3845Bs in order to reduce to TMTO 5.
> Any suggestion?

We'd need to take a look.  Katja - maybe you could help?


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