[Info-vax] Disable hyper-threading from the DCL prompt

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Hi all,

We have several x2800 i2's running VMS v8.4 and I seem to recall a command, issued from the DCL prompt, which disables hyper-threading at the CPU's.  I know there is another way to do so from EFI but I thought it was also possible to do so from DCL.  (Knowing that it will not take effect until the next reboot.)

Can someone please refresh my feeble mind as to the command?

Thanks in advance.

Rich