GPU Miners are here... if rumors are to be believed!

[super3]

Call it nitpicking, but it is written in Python using pyopencl My plan is to try to get some reward for the work first. Mining is apparently not an option anymore (not with my 2 noisy 7870s), so I am selling the miner. The buyer, if there will be one, can opensource it of course at his discretion.

PM me with a price.

[reorder]

Call it nitpicking, but it is written in Python using pyopencl My plan is to try to get some reward for the work first. Mining is apparently not an option anymore (not with my 2 noisy 7870s), so I am selling the miner. The buyer, if there will be one, can opensource it of course at his discretion.

EDIT: sold exclusively.

[alexxy]

So you're miner writtein in pyopencl? Any plans to opensource it?

[reorder]

By the way, looks like there is currently no bounty for GPU miner implementation, so anyone interested in bargaining for it please PM. Just keep in mind it is not a turnkey thing, python/pyopencl and very basic network.

EDIT: sold exclusively.

[reorder]

So how about some actually useful information regrading the GPU miner then?

I don't have any information other than the algorithm I would implement given the time:

Generate 512 MB of birthdays (512 Hashes) in parallel
Use the GPU to sort them
Use the GPU to find collisions

Someone who wants an open source GPU miner could easily pay to have one developed for them and it would cost about $10,000 or perhaps less.   Considering what people are paying Amazon for cloud computing, it only makes sense that someone would develop this.

I have implemented a GPU miner, and this algo (with bitonic parallel sorting which is considered best for the task) yields just 160hpm on 7870 at best. There are better ways, currently I can squeeze >500hpm out of the card at stock clocks.

Thank you for sharing.  So with an optimized algorithm you can get about a 3x gain from the GPU vs a CPU as many CPUs are getting 160 HPM.   Will you share your algorithm?

Just a hashtable, fast and dirty in a sense that it may skip valid collisions.

So if you accept losses due to race conditions then you gain on average.  Sounds like how I optimized my CPU miner.

Curiously, the more you are willing to lose, the more you gain. HPM was increasing as I went from full sort to cuckoo hashtable to plain synchronized hashtable to unsynchronised one. And then the same with worsening the hash function and reducing the table size.

[bytemaster]

So how about some actually useful information regrading the GPU miner then?

I don't have any information other than the algorithm I would implement given the time:

Generate 512 MB of birthdays (512 Hashes) in parallel
Use the GPU to sort them
Use the GPU to find collisions

Someone who wants an open source GPU miner could easily pay to have one developed for them and it would cost about $10,000 or perhaps less.   Considering what people are paying Amazon for cloud computing, it only makes sense that someone would develop this.

I have implemented a GPU miner, and this algo (with bitonic parallel sorting which is considered best for the task) yields just 160hpm on 7870 at best. There are better ways, currently I can squeeze >500hpm out of the card at stock clocks.

Thank you for sharing.  So with an optimized algorithm you can get about a 3x gain from the GPU vs a CPU as many CPUs are getting 160 HPM.   Will you share your algorithm?

Just a hashtable, fast and dirty in a sense that it may skip valid collisions.

So if you accept losses due to race conditions then you gain on average.  Sounds like how I optimized my CPU miner. 

[reorder]

So how about some actually useful information regrading the GPU miner then?

I don't have any information other than the algorithm I would implement given the time:

Generate 512 MB of birthdays (512 Hashes) in parallel
Use the GPU to sort them
Use the GPU to find collisions

Someone who wants an open source GPU miner could easily pay to have one developed for them and it would cost about $10,000 or perhaps less.   Considering what people are paying Amazon for cloud computing, it only makes sense that someone would develop this.

I have implemented a GPU miner, and this algo (with bitonic parallel sorting which is considered best for the task) yields just 160hpm on 7870 at best. There are better ways, currently I can squeeze >500hpm out of the card at stock clocks.

Thank you for sharing.  So with an optimized algorithm you can get about a 3x gain from the GPU vs a CPU as many CPUs are getting 160 HPM.   Will you share your algorithm?

Just a hashtable, fast and dirty in a sense that it may skip valid collisions.

[bytemaster]

So how about some actually useful information regrading the GPU miner then?

I don't have any information other than the algorithm I would implement given the time:

Generate 512 MB of birthdays (512 Hashes) in parallel
Use the GPU to sort them
Use the GPU to find collisions

Someone who wants an open source GPU miner could easily pay to have one developed for them and it would cost about $10,000 or perhaps less.   Considering what people are paying Amazon for cloud computing, it only makes sense that someone would develop this.

I have implemented a GPU miner, and this algo (with bitonic parallel sorting which is considered best for the task) yields just 160hpm on 7870 at best. There are better ways, currently I can squeeze >500hpm out of the card at stock clocks.

Thank you for sharing.  So with an optimized algorithm you can get about a 3x gain from the GPU vs a CPU as many CPUs are getting 160 HPM.   Will you share your algorithm?

[reorder]

So how about some actually useful information regrading the GPU miner then?

I don't have any information other than the algorithm I would implement given the time:

Generate 512 MB of birthdays (512 Hashes) in parallel
Use the GPU to sort them
Use the GPU to find collisions

Someone who wants an open source GPU miner could easily pay to have one developed for them and it would cost about $10,000 or perhaps less.   Considering what people are paying Amazon for cloud computing, it only makes sense that someone would develop this.

I have implemented a GPU miner, and this algo (with bitonic parallel sorting which is considered best for the task) yields just 160hpm on 7870 at best. There are better ways, currently I can squeeze >500hpm out of the card at stock clocks.

[Pocket Sand]

So how about some actually useful information regrading the GPU miner then?

This ^

[bytemaster]

So how about some actually useful information regrading the GPU miner then?

I don't have any information other than the algorithm I would implement given the time:

Generate 512 MB of birthdays (512 Hashes) in parallel
Use the GPU to sort them
Use the GPU to find collisions

Someone who wants an open source GPU miner could easily pay to have one developed for them and it would cost about $10,000 or perhaps less.   Considering what people are paying Amazon for cloud computing, it only makes sense that someone would develop this.

[m0rph]

So how about some actually useful information regrading the GPU miner then?

[TotalPanda]

Hi, I think the Invictus Team is the most aware

[Amazon]

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[yago]

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