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Interactive Console Updates for Multi-thread/Single-Rank Debug Support #1535

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@kpgriesser kpgriesser commented Jan 8, 2026

This PR replaces #1507 to track the interactive console feature branch development.
We decided that it would be more efficient to refer to the live feature branch rather than a snapshot (which has since gotten out of date).

To recap: This PR provides a set of updates to the interactive debug console, object mapping support, and bug fixes.

  • Ensure signal command line flags are processed before the checkpoint directory is created and have it fail immediately if the --checkpoint-prefix PREFIX is not valid.
  • Add support for user defined commands in the interactive console, consisting of a named sequence of commands and supporting nested definitions
  • Single-rank, multithreaded interactive debug console support. In multithreaded simulations, interactive console is invoked from the syncManager, starting in thread 0. - - The user can navigate the object map, set watchpoints, etc. within a thread. The “info” command provides the rank, thread ID, and process ID for threads and the “thread” command switches control between threads.

skuntz and others added 6 commits December 16, 2025 10:21
@skuntz
Interactive Console Updates
31535b6 
* Support for single-rank, multithreaded interactive debug console.
  Breaks into interactive console is at a sync point and is managed
  by the syncManager. It breaks into the interactive console when
  any thread has triggered the interactive console and starts in
  thread 0 initially. The user can navigate the object map,
  set watchpoints, etc. for components within the thread and switch
  between threads to access other components.
* Support for user-defined commands in the interactive debug console
  which are a named sequence of commands and can be nested.
* Updates to the parsing of --checkpoint-prefix and creation of the
  checkpoint directory. Ensure that the signal flags are handled
  before the checkpoint directory is created and fails immediately
  if the PREFIX is not valid.
@skuntz
Revert realtime heartbeat test
17b9ef7
@skuntz
Fix missing constructor
c1667d5
@skuntz
Fix checkpoint action for multithreaded execution
ab2f2de
merge from sandia/devel
2d5baa9
merge from sandia/devel
09b6496
@github-actions github-actions bot added AT: WIP Mark PR as a Work in Progress (No Autotesting Performed) AT: CLANG-FORMAT FAIL labels Jan 8, 2026
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CLANG-FORMAT TEST - FAILED (on last commit):
Run > ./scripts/clang-format-test.sh using clang-format v20 to check formatting

@kpgriesser kpgriesser marked this pull request as draft January 8, 2026 23:10
@kpgriesser kpgriesser changed the title Interactive Console Updates Interactive Console Updates for Multi-thread/Single-Rank Debug Support Jan 8, 2026
@skuntz skuntz mentioned this pull request Jan 8, 2026
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CLANG-FORMAT TEST - FAILED (on last commit):
Run > ./scripts/clang-format-test.sh using clang-format v20 to check formatting

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github-actions bot commented Jan 13, 2026

CLANG-FORMAT TEST - FAILED (on last commit):
Run > ./scripts/clang-format-test.sh using clang-format v20 to check formatting

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github-actions bot commented Jan 14, 2026

CLANG-FORMAT TEST - FAILED (on last commit):
Run > ./scripts/clang-format-test.sh using clang-format v20 to check formatting

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github-actions bot commented Jan 14, 2026

CLANG-FORMAT TEST - FAILED (on last commit):
Run > ./scripts/clang-format-test.sh using clang-format v20 to check formatting

@skuntz
Multithreaded iconsole - support for shared replay, logging, autocomp…
53cd7c5 
…lete, and confirm commands (#35)

* Multithreaded support for shared replay, logging, autocomplete, and confirm

* Fix missing headers in simpleDebug

* clang-format
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CLANG-FORMAT TEST - FAILED (on last commit):
Run > ./scripts/clang-format-test.sh using clang-format v20 to check formatting

@kpgriesser
New command line auto-complete tab functionality. On the 1st tab, fil…
7f8f1e3 
…ls in the longest matching string prefix. On the 2nd tab: Lists all matching completion strings (#34)
@github-actions github-actions bot added AT: CLANG-FORMAT PASS and removed AT: WIP Mark PR as a Work in Progress (No Autotesting Performed) AT: CLANG-FORMAT FAIL labels Jan 22, 2026
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CLANG-FORMAT TEST - PASSED

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sst-autotester commented Jan 22, 2026

Status Flag 'Pre-Test Inspection' - - This Pull Request Requires Inspection... The code must be inspected by a member of the Team before Testing/Merging
NO INSPECTION HAS BEEN PERFORMED ON THIS PULL REQUEST! - This PR must be inspected by setting label 'AT: PRE-TEST INSPECTED'.

@github-actions github-actions bot added AT: WIP Mark PR as a Work in Progress (No Autotesting Performed) and removed AT: WIP Mark PR as a Work in Progress (No Autotesting Performed) labels Jan 22, 2026
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CLANG-FORMAT TEST - PASSED

@kpgriesser
removed internal debug spinner command (#37)
28bc10f 
Co-authored-by: Kenneth Griesser <kgriesser@tclcomplabs.com>
@github-actions github-actions bot added AT: WIP Mark PR as a Work in Progress (No Autotesting Performed) and removed AT: WIP Mark PR as a Work in Progress (No Autotesting Performed) labels Jan 23, 2026
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CLANG-FORMAT TEST - PASSED

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sst-autotester commented Jan 23, 2026

Status Flag 'Pre-Test Inspection' - - This Pull Request Requires Inspection... The code must be inspected by a member of the Team before Testing/Merging
NO INSPECTION HAS BEEN PERFORMED ON THIS PULL REQUEST! - This PR must be inspected by setting label 'AT: PRE-TEST INSPECTED'.

@github-actions github-actions bot added AT: WIP Mark PR as a Work in Progress (No Autotesting Performed) and removed AT: WIP Mark PR as a Work in Progress (No Autotesting Performed) labels Jan 27, 2026
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CLANG-FORMAT TEST - PASSED

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sst-autotester commented Jan 27, 2026

Status Flag 'Pre-Test Inspection' - - This Pull Request Requires Inspection... The code must be inspected by a member of the Team before Testing/Merging
NO INSPECTION HAS BEEN PERFORMED ON THIS PULL REQUEST! - This PR must be inspected by setting label 'AT: PRE-TEST INSPECTED'.

@kpgriesser
provided user prompting to select a variable name when more than one …
4e1249a 
…match is found. This can be disabled using "confirm false" in the console which will revert to the prototype functionality of simply selecting the first match. This should be removed by ensuring the object map has unique variable names ( and not use std::multimap )... presumably (#39)
@github-actions github-actions bot added AT: WIP Mark PR as a Work in Progress (No Autotesting Performed) AT: CLANG-FORMAT FAIL and removed AT: CLANG-FORMAT PASS labels Jan 27, 2026
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CLANG-FORMAT TEST - FAILED (on last commit):
Run > ./scripts/clang-format-test.sh using clang-format v20 to check formatting

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@kpgriesser @sst-autotester @skuntz