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CHARON-VAX model | Minimal number of CPU cores | Recommended number of CPU cores |
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VAX 6610 | 2 | 4 |
VAX 6620 | 3 | 4 |
VAX 6630 | 4 | 6 |
VAX 6640 | 6 | 8 |
VAX 6650 | 8 | 12 |
VAX 6660 | 8 | 12 |
| Other models | 2 | 2 |
When starting, the CHARON-VAX software checks the available number of host CPU cores. Currently, this This check is based on the maximum number of VAX CPUs that can be emulated , not on the number of the actually configured VAX CPUs. Therefore the number of host CPU cores recommended for the maximum number of emulated CPUs - as shown in the right column of the table above - must be availableif this number is not restricted by the "n_of_cpus" parameter. If the available number of host CPU cores is below this number, CHARON-VAX will issue a warning message even if the requirements for the configured number of VAX CPUs are fulfilled. The CHARON-VAX software will work despite this warning if the requirements for the configured number of VAX CPUs are fulfilled.
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Hyper-threading must be switched off completely. Disable hyper-threading in the BIOS settings of the physical host or, for a VMware virtual machine, edit the virtual machine properties, select the Resources tab then select Advanced CPU. Set the Hyper-threaded Core Sharing mode to None. |
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