Hi Wei, Thank you for your reply. I just checked available CPU models in libvirt at /usr/share/libvirt/cpumap.xml with their features and found SandyBridge to have avx feature. Then I edited the agent.properties file and changed guest.cpu.mode to custom and guest.cpu.model to SandyBridge in order to expose avx feature to guests. Then stoped one of guest VNs and tried to start it. Unfortunately now the guest VM does not start with the general error "Unable to create a deployment plan due to insufficient capacity. So, I reversed the changes and VM started again.
What can be the reason for this problem? Best Regards. On Mon, May 15, 2023 at 2:05 AM Wei ZHOU <ustcweiz...@gmail.com> wrote: > Hi, > > Please refer to > > https://docs.cloudstack.apache.org/en/4.18.0.0/installguide/hypervisor/kvm.html#configure-cpu-model-for-kvm-guest-optional > > Kind regards, > Wei > > On Sunday, 14 May 2023, Fariborz Navidan <mdvlinqu...@gmail.com> wrote: > > > Hello Community, > > > > We are runningACS 4.14 in one of our locations. We need to enable AVX > > support on guests CPUs. The CPU model which is used for guests is QEMU > > virtual CPU. I'm wondering if it possible to enable the AVX CPU flag for > > virtual CPU on which gh guests are running. Also, please share with me if > > it is possible to enable this flag virtually without needing the physical > > CPU to support it. By this, I mean software defined implementation of the > > AVX feature. > > > > Thanks in advance. > > Regards. > > >
