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Parameter

license_key_id[N]

N=0 or 1

TypeNumeric
Value

An integer (decimal Sentinel Key ID) that specifies the regular (N=0) and backup (N=1) license keys to be used by CHARON-AXP.

set session license_key_id[0]=1877752571
set session license_key_id[1]=354850588

It is also possible to specify both regular and backup keys in one line:

set session license_key_id[0]=1877752571 license_key_id[1]=354850588

Based on the presence of the regular and/or backup license key IDs in the configuration file, CHARON-AXP behaves as follows:
 

  1. No keys are specified
    CHARON-AXP performs an unqualified search for any suitable key. If no key is found, CHARON-AXP exits.

  2. Both keys are specified
    CHARON-AXP performs a qualified search for a regular license key. If it is not found, CHARON-AXP performs a qualified search for backup license key. If it is not found, CHARON-AXP exits.

  3. Only regular key is specified
    CHARON-AXP performs a qualified search for a regular license key. If it is not found, CHARON-AXP performs an unqualified search for any suitable key. If none are found, CHARON-AXP exits.

  4. Only backup key is specified
    CHARON-AXP performs an unqualified search for any suitable key. If no key is found, CHARON-AXP exits.

license_key_lookup_retry

Parameterlicense_key_lookup_retry
TypeText String
Value

In case the CHARON-AXP license connection is not present when the guest starts up, this parameter specifies how many times CHARON-AXP will try to establish the connection and, optionally, a period of time between retries.

Syntax:

set session license_key_lookup_retry = "N [, T]"

Options:

  • N - Number of retries to look for license keys.
  • T - Time between retries in seconds. If not specified 60 seconds are used

Example 1

set session license_key_lookup_retry = 1

If license key is not found during initial scan, do only one more attempt after 60 seconds.

Example 2

set session license_key_lookup_retry = "1,30"

Same as above but retry in 30 seconds.

Example 3

set session license_key_lookup_retry = "3,10"

If license key is not found during initial scan, do 3 more attempts waiting 10 seconds between them.

Example 4

set session license_key_lookup_retry = "5"

If license key is not found during the initial scan, do 5 more attempts waiting 60 seconds between them.

affinity

Parameteraffinity
TypeText string
Value

Overrides any initial process affinity mask provided by the host operating system. Once specified it binds the running instance of the emulator to particular host CPUs.

Used for soft partitioning of the host CPU resources and/or for isolating host CPUs for other applications.

By default the CHARON-AXP emulator instance allocates as many host CPUs as possible. The “affinity” parameter overrides that and allows explicit specification on which host CPU the instance must run on.

 

Note

The "affinity" parameter defines the total number of host CPUs to be used both for emulated Alpha CPUs and for CHARON-AXP application itself (including the CPUs to be used for I/O - they are controlled by "n_of_io_cpus" parameter described below).

Host CPUs are enumerated as a comma separated list of host system assigned CPU numbers:

set session affinity="0, 2, 4, 6"

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Parametern_of_io_cpus
TypeNumeric
Value

This parameter specifies how many host CPUs CHARON-AXP must use for I/O handling. Use of the “affinity” parameter may limit the number of CPUs available.

By default the CHARON-AXP instance reserves one third of all available host CPUs for I/O processing (round down, at least one). The “n_of_io_cpus” parameter overrides that by specifying the number of CHARON I/O CPUs explicitly.

Example:

set session n_of_io_cpus=2

license_key_lookup_retry

Parameterlicense_key_lookup_retry
TypeText String
Value

In case the CHARON-AXP license connection is not present when the guest starts up, this parameter specifies how many times CHARON-AXP will try to establish the connection and, optionally, a period of time between retries.

Syntax:

set session license_key_lookup_retry = "N [, T]"

Options:

  • N - Number of retries to look for license keys.
  • T - Time between retries in seconds. If not specified 60 seconds are used

Example 1

set session license_key_lookup_retry = 1

If license key is not found during initial scan, do only one more attempt after 60 seconds.

Example 2

set session license_key_lookup_retry = "1,30"

Same as above but retry in 30 seconds.

Example 3

set session license_key_lookup_retry = "3,10"

If license key is not found during initial scan, do 3 more attempts waiting 10 seconds between them.

Example 4

set session license_key_lookup_retry = "5"

If license key is not found during the initial scan, do 5 more attempts waiting 60 seconds between them.

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