MINING with both GPU and the CPU on the same PC. DUAL MINING!!!

Kodaman

jr. member

Activity: 189

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Quote from: joblo on September 30, 2019, 01:05:47 AM

The problem can be virtually eliminated by running the cpuminer at a lower priority than the
GPU miner. When the GPU's CPU support thread needs to run it will immediately preempt a
cpuminer thread. Other than a dirty cache it's the same as if the CPU had been idle.

Running the cpuminer at a lower prio will also prevent it from competing with other processes
running at the default prio.

I will try this definitely because it sounds like a great idea!

sxemini

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Activity: 1558

Merit: 69

Quote from: adaseb on September 30, 2019, 12:07:54 AM

In the past whenever I did separate CPU and GPU mining I had to configure it to use all the cores except one. Basically if you try and mine with all cores on the CPU, your GPU speeds will slowdown.

So if you got a 4 core CPU, you need to configure it to mine with 3 cores and leave the last one unused, the last one will be used for the GPU mining. Most GPU miners don't need a lot of CPU resources however if all CPU cores are using 99% usage then the GPU miner will lag from time to time and you will get a slower speed.

Sorry this is wrong. We mining with all cores on our rigs (Intel G3900) and the gpu´s didn´t slow down.

mineshop.eu

copper member

Activity: 406

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Best bet mining Randomx is with Ryzen 9 and then add gpus best performance for your other preferable coin to mine.
We have this dual miner , check components we use https://mineshop.eu/monero-xmr-miners/monero-dual-miner-randomx/

joblo

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Activity: 1470

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The problem can be virtually eliminated by running the cpuminer at a lower priority than the
GPU miner. When the GPU's CPU support thread needs to run it will immediately preempt a
cpuminer thread. Other than a dirty cache it's the same as if the CPU had been idle.

Running the cpuminer at a lower prio will also prevent it from competing with other processes
running at the default prio.

adaseb

legendary

Activity: 3808

Merit: 1723

Up to 300% + 200 FS deposit bonuses

In the past whenever I did separate CPU and GPU mining I had to configure it to use all the cores except one. Basically if you try and mine with all cores on the CPU, your GPU speeds will slowdown.

So if you got a 4 core CPU, you need to configure it to mine with 3 cores and leave the last one unused, the last one will be used for the GPU mining. Most GPU miners don't need a lot of CPU resources however if all CPU cores are using 99% usage then the GPU miner will lag from time to time and you will get a slower speed.

Kodaman

jr. member

Activity: 189

Merit: 2

Quote from: ivakar on September 28, 2019, 02:26:03 AM

Quote from: Kodaman on September 27, 2019, 05:31:03 PM

Quote from: joblo on September 27, 2019, 11:47:34 AM

Quote from: Kodaman on September 27, 2019, 11:31:24 AM

I personally think dual mining from cpu and gpu will be the future of mining.

With ASICs and FPGAs taking over more and more algos I'm not so sure.

Well i think that is why CPU mining will be interesting with especially high core CPUS because of the ASICS and FPGAS are trying to take over.
Randomx is the first breed of those kind of algorithms. There are much more GPU rigs out there than ASICS and FPGAS. They all have a CPU too so lets hope those CPUS will worth something.

the first one with similar algo was raven coin, as far as I remember. then there were pigen coin... and then new version of that algo (x16r)
but as far as I know asic's manufacturer has already developed the asic for x16r.. it took about a year or so...
so I guess with this new algo the situation will like wise... we will see new asics capable to mine this algo and the cpu and gpus will be out..

It is a Cat and Mouse game. We are not going to sell our GPUS just because they will have ASICS and FPGAS, there will always be new algos and dynamic active projects will switch to those algos imho.

ivakar

hero member

Activity: 756

Merit: 507

Quote from: Kodaman on September 27, 2019, 05:31:03 PM

Quote from: joblo on September 27, 2019, 11:47:34 AM

Quote from: Kodaman on September 27, 2019, 11:31:24 AM

I personally think dual mining from cpu and gpu will be the future of mining.

With ASICs and FPGAs taking over more and more algos I'm not so sure.

Well i think that is why CPU mining will be interesting with especially high core CPUS because of the ASICS and FPGAS are trying to take over.
Randomx is the first breed of those kind of algorithms. There are much more GPU rigs out there than ASICS and FPGAS. They all have a CPU too so lets hope those CPUS will worth something.

the first one with similar algo was raven coin, as far as I remember. then there were pigen coin... and then new version of that algo (x16r)
but as far as I know asic's manufacturer has already developed the asic for x16r.. it took about a year or so...
so I guess with this new algo the situation will like wise... we will see new asics capable to mine this algo and the cpu and gpus will be out..

Kodaman

jr. member

Activity: 189

Merit: 2

I don't want to open another thread because i am afraid jmigdlc99 will get jealous but how feasible is it to mine Randomx like CPU favored algos with VPS?
There are tons of masternodes using VPS for their nodes. Can they mine with those too?
Thanks for the answers...

Kodaman

jr. member

Activity: 189

Merit: 2

Quote from: joblo on September 27, 2019, 11:47:34 AM

Quote from: Kodaman on September 27, 2019, 11:31:24 AM

I personally think dual mining from cpu and gpu will be the future of mining.

With ASICs and FPGAs taking over more and more algos I'm not so sure.

Well i think that is why CPU mining will be interesting with especially high core CPUS because of the ASICS and FPGAS are trying to take over.
Randomx is the first breed of those kind of algorithms. There are much more GPU rigs out there than ASICS and FPGAS. They all have a CPU too so lets hope those CPUS will worth something.

Kodaman

jr. member

Activity: 189

Merit: 2

Quote from: joblo on September 27, 2019, 11:45:52 AM

Quote from: jmigdlc99 on September 27, 2019, 11:32:42 AM

Sorry but it seems like topic starter is just spamming.

I disagree. Dual mining is not discussed that much. It's a wothwhile topic. The spammers are the ones that
only criticize the idea as a waste of time.

i agree with you 100%...

joblo

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Activity: 1470

Merit: 1114

Quote from: Kodaman on September 27, 2019, 11:31:24 AM

I personally think dual mining from cpu and gpu will be the future of mining.

With ASICs and FPGAs taking over more and more algos I'm not so sure.

joblo

legendary

Activity: 1470

Merit: 1114

Quote from: jmigdlc99 on September 27, 2019, 11:32:42 AM

Sorry but it seems like topic starter is just spamming.

I disagree. Dual mining is not discussed that much. It's a wothwhile topic. The spammers are the ones that
only criticize the idea as a waste of time.

jmigdlc99

sr. member

Activity: 784

Merit: 282

Sorry but it seems like topic starter is just spamming. As mentioned by everyone else already, it is possible to mine with both CPU and GPU at the same time, but theres not much profit in it. All of your questions have already been answered on google.

Please do your research before dragging along with this thread, if possible, please.

joblo

legendary

Activity: 1470

Merit: 1114

Quote from: sxemini on September 27, 2019, 08:45:10 AM

I mine with every cpu in my gpu rigs (6 - 13 GPU rigs). No impact on GPU mining speed. Some rigs has a celeron g3900 or g1840 in it and i mine on all cores with no impact.

Another rig has 1 GPU instance, 1 CPU instance and 5 HDD miner running, no impact Wink

Sure it can be done but it's dependent on task scheduling. Anytime a GPU miner's CPU thread has to wait
is dead time that reduces the effective hash rate. Running the CPU miner at a lower priority will usually
eliminate any scheduling latency for the GPU.

Kodaman

jr. member

Activity: 189

Merit: 2

Really hiqh quality posts are coming and it is great.
I personally think dual mining from cpu and gpu will be the future of mining. More pysical ram, more virtual memory from SSDs and higher core CPUs can make it more stable and may squeeze more hash but it all needs testing.

Kodaman

jr. member

Activity: 189

Merit: 2

Quote from: sxemini on September 27, 2019, 08:45:10 AM

Quote from: joblo on September 27, 2019, 08:08:54 AM

CPU mining on a dedicated GPU rig (more GPUs than CPU cores) is not advised.
Although GPU mining hardly uses any CPU you still want the CPU to be responsive
whenever it's needed.

Whatever, test it and see how much CPU mining affects GPU mining performance.
Different algos mined on the CPU will have a different impact on GPU performance.

I mine with every cpu in my gpu rigs (6 - 13 GPU rigs). No impact on GPU mining speed. Some rigs has a celeron g3900 or g1840 in it and i mine on all cores with no impact.

Another rig has 1 GPU instance, 1 CPU instance and 5 HDD miner running, no impact Wink

Please give me your step by step settings. This sounds really interesting

sxemini

member

Activity: 1558

Merit: 69

Quote from: joblo on September 27, 2019, 08:08:54 AM

CPU mining on a dedicated GPU rig (more GPUs than CPU cores) is not advised.
Although GPU mining hardly uses any CPU you still want the CPU to be responsive
whenever it's needed.

Whatever, test it and see how much CPU mining affects GPU mining performance.
Different algos mined on the CPU will have a different impact on GPU performance.

I mine with every cpu in my gpu rigs (6 - 13 GPU rigs). No impact on GPU mining speed. Some rigs has a celeron g3900 or g1840 in it and i mine on all cores with no impact.

Another rig has 1 GPU instance, 1 CPU instance and 5 HDD miner running, no impact Wink

joblo

legendary

Activity: 1470

Merit: 1114

CPU mining on a dedicated GPU rig (more GPUs than CPU cores) is not advised.
Although GPU mining hardly uses any CPU you still want the CPU to be responsive
whenever it's needed.

Whatever, test it and see how much CPU mining affects GPU mining performance.
Different algos mined on the CPU will have a different impact on GPU performance.

ivakar

hero member

Activity: 756

Merit: 507

well, I used to do before, I mean I started cpu miner for some cryptonight coins on my amd x8 core and within few seconds started 4 x rx570 8GB gpus on the same computer
those four cards were mining same coin as cpu.. and there were no issues! different miners, but hashrate was juts summarised on the pool side.

TheWolf666

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CEO of Metaisland.gg and W.O.K Corp

Just run cpuminer in one instance, and gpuminer in another instance.

You might have your desktop become too hot and reboot or shut down, so adjust the number of CPU or GPU cores or put the computer in an ice cold environment.

Topic: MINING with both GPU and the CPU on the same PC. DUAL MINING!!! (Read 431 times)