GNS3 VM vcpu problem

[mike940]

HI I seem to have this problem that I cant seem to run my topology due to an issue that seems to come up every time when I allocate more vcpu core to the Gns3 vm in the preference menu it gives me this error:

"Error while saving settings: GNS3VM: You have allocated too many vCPUs for the GNS3 VM! (max available is 2 vCPUs"

I am currently running the latest version of GNS3 version 2.1.12 and I am using vmware workstaion 12 player and my pc supports 4 logical processors Can someone please tell me what steps I should take to correct this problem thanks

[ghost]

Hi,

There are several things you are doing wrong. The primary mistake you are making is that you are using a non-default configuration for GNS3; you should not do that because then no one at gns3.com community will be able to help you.

From the vmware workstation pro 15 documentation:

"For Windows virtual machines running mostly office and Internet productivity applications, using multiple virtual processors is not beneficial"

vmware workstation pro and vmware workstation player have certain differences and I really can not read through the vmware workstation player 12 documentation (to be good at vmware workstation pro or vmware workstation player - one would have to sign up for a 5 day paid course somewhere).

Vcpus are extremely complicated.

Please just use the default number of vcpus that gns3 permits you to use and head back over to gns3.com->community to seek further assistance.

[mike940]

Hi,

First of all joevizio what several things am I doing wrong? I'm not making any mistake whatsoever as you are saying because you can change the configuration to meet your needs for example increasing the ram size in the vm preference menu, have a look at this from the GNS3 official webiste setup wizard:

"GNS3 recommends a minimum of 1 vCPU core and 2GB RAM. However, if you want to run large topologies with many devices, more CPU cores and RAM are recommended. You can adjust the settings later using the GNS3 GUI."

also have a look at this:
#2622

if you create a topology but then require it to have more devices configured for example like an iosvl2 or iou device then you would have to increase the ram and cpu cores accordingly

but someone had an issue in this link and i'm not sure if this could be the solution:
#2324

[grossmj]

This should be fixed now. We were using the physical CPU count only, not we take logical CPUs into account. Thanks for reporting.