Post
Topic
Board Announcements (Altcoins)
Re: [ANN] MediterraneanCoin (MED) - REUSE your ERUPTER!! new hybrid PoW algo!
by
rfe3
on 26/02/2014, 23:36:02 UTC
I've been battling with the same low output issues since I started mining from the coin launch. Solo or Pool, bfg or cgminer, the "coins per day" stays about the same. I have 6 Antminer U1s that are modded to 1.2v (3Gh/s) and they run consistantly at 1 - 1.3Gh/s. It doesn't matter if I run 1 or 6, the output is the same(based on the CPU used). With an i3 CPU I can run 4 modded AMUs and the CPU usage is about 85-90%, with an i7 CPU, I can run all 6 with an avg. 75% CPU usage. Bfgminer has a higher overall Hashrate but lots more HW errors (38-40%), Cgminer has a lower overall Hashrate but almost no HW errors. The effective hashing rate remains about the same as far as I can tell. The biggest difference between bfgminer and cgminer seems to be in the Pool hashrate. Bfgminer shows my hashrate to be 4.5Gh/s with 4 AMUs, the pool worker hashrate is almost always 1.5 - 1.75 Gh/s lower, Cgminer registers a much lower hashrate on the pool (50-60% lower) than in cgminer itself. Solo mining cgminer seems to hash a little faster.

I don't really have a problem with the lower hashrate because it's in keeping with the premise of the coin by restricting the hashing power of the huge miners out there. I just can't nail the consistency down in the relationship between CPU and Hashing power. It looks like an i3 Processor will handle about 5 Gh/s before the CPU is maxed out (using Antminer U1s), and 8Gh/s with an i7. These numbers are based on my observations using my Laptops, others may get totally different figures..I don't know... What bugs me is if I am able to mine with a max hashrate of 4 to 5 Gh/s with an i3 Processor, why can't I do it with only 2 AMUs? My modded AMUs will mine a consistant 2.9-3.1 Gh/s each on a SHA256 coin. Theoretically...I should be able to max out an i3 Processor with 2 AMUs (instead of 5) and an i7 with 3 AMUs.

Like I said, I'm not really Bitching about the mining, but it would be nice to know if the hashrate is somehow limited "Per Device" in conjunction with the CPU or purely by a hashrate to CPU factor. It would save me what little Hair I have left trying to find the "Best" setup with bfgminer and cgminer...