Bad things happen when I change the Parallels hardware configuration to Number of CPUs = 2 on my Red Hat Enterprise Linux Server 5.2 VM: 1 - Intermittent hangs at boot. 2 - Intermittent hangs after boot and does not respond to mouse or keyboard. This may be a Linux-y thing rather than a VM host issue ( I am not a Linux expert ). I thought I had found a solution, to set the the acpi_pm clocksource in the grub.conf. Example: kernel /vmlinuz-2.6.18-92.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet clocksource=acpi_pm But still bad things happen; I went back Number of CPUs = 1. Thanks in advance for tips or suggestion regarding multiple CPU's in a Linux guest VM. -Ed PS: I develop software that uses OpenGL to render 2D video frames as a texture. There is no hardware acceleration support in a Linux guest. I must use software rendering which has pitiful performance. I was hoping to get 2xCPUs working in order to increase performance to (2 x pitiful).
