Cannot mine with more than 1 thread cpuminer-opt 3.6.5

Mining Rigs, mining optimization and pools for Verium
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Posts: 5
Joined: Thu Jul 20, 2017 7:32 pm

Thu Jul 20, 2017 7:44 pm

Hi guys,

I am new to the crypto and mining scene. Before I will buy new hardware, I am checking out how to mine with my current (old) computer. (Please don't laugh about my hashrate :mrgreen: )

I am currently using cpuminer-opt 3.6.5 with cpuminer-sse2 on windows.

When I mine using 1 thread, it works.


But when I stop mining and start with 2,3 or 4 threads, it throws and error and closes :cry:


Do you have an idea how to fix this?

Posts: 12
Joined: Fri Jul 07, 2017 4:10 pm

Sat Jul 22, 2017 3:57 am

You need to increase your virtual memory or you don't have enough RAM.

Posts: 5
Joined: Thu Jul 20, 2017 7:32 pm

Sat Jul 22, 2017 10:44 pm

Thanks, I'll try that.

Posts: 5
Joined: Thu Jul 20, 2017 7:32 pm

Mon Jul 24, 2017 8:17 pm

Okay, that helped me a lot thanks!

Now mining with 3 threads, I wonder how to read the output of cpuminer correctly.

Why was there at 21:40:33 384 a single entry, saying that 384 Hashes at a rate of 7.02 H/s were accepted?

Were all other generated hashes, at the other times, not submitted or not accepted by the mining pool?

What could be the reasons if so and how do I increase the share of submitted/accepted Hashes?


Thx in advance!

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Posts: 20
Joined: Fri Jul 21, 2017 7:25 pm

Tue Jul 25, 2017 8:33 pm

WEll did a little of research and aparently you got proof of work, and tyou will be rewarded for that.

it refers to cpuminer, although they are talking about bitcoin.

Posts: 5
Joined: Thu Jul 20, 2017 7:32 pm

Thu Jul 27, 2017 6:16 pm

Thx for the reply.

If I read that bitcointalk-post correctly, it means I was succesfully sharing 384 hashes to the mining pool.

The big question is now: what happens to all my other generates hashes before and after this message?

If they were not shared to the pool = not used for mining a block, then I am wasting lots of electricity in generating hashes but not making use of them. Right?

If so, then only solo mining with a remarkable hashing power makes sense. And that concerns me a bit :?

Posts: 18
Joined: Mon Jun 19, 2017 7:26 pm
Location: San Antonio, Tx

Mon Aug 21, 2017 3:56 am

I think the issue is how you're reading it. When you see an accepted share I believe it's combining the hashrates of all the threads. If you're using a pool, all threads are hashing, and you are seeing accepted shares then everything is working correctly. You are not wasting any hash.

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