Support for non-binary checkpoint recover was removed from recover system

[GiudGiud]

Reason

MOOSE used to support restarting from non-binary files. The suffix was then changed.
I dont see this option in the current version of moose? @friedmud removed it seemingly
It is and was in use, considering #26673 and the two other posts they linked in that discussion

The only test which was testing this was not really because it was focused on other things.

+    [run]
+      type = 'RunApp'
+      input = 'perf_graph_reporter_recover.i'
+      cli_args = '--recover --recoversuffix cpr'.  <- already the suffix
+      prereq = recover_initial
+      recover = false
+      detail = 'in JSON format'
+    []

How to reproduce

Use input from #26673 in post with a newer version of moose

Design

Add the suffix back or auto-detect it ? Or fix what is supposed to auto detect it
And add a test!!

Impact

Let MOOSE run easier on system which dont have libtirpc and cant use the binary format

Discussed in #26673

^{Originally posted by MusannaGalib January 29, 2024}
Hello,

I installed MOOSE without XDR ( ./scripts/update_and_rebuild_libmesh.sh --disable-xdr-required) as the cluster does not have the libtirpc-devel package. I used binary = false in my checkpoint files which generates 0008_mesh.cpa 0008.rd-0 0008.xda 0008.xda.0000.

0008_mesh.cpa folder contains header.cpa split-1-0.cpa . I am attaching the files here.

I tried to restart using mpiexec -n 1 /home/galibubc/projects/rrg-mponga/galibubc/MOOSE_128p_2020/dendrite/dendrite-opt -i input.i --recover input_checkpt_cp/0008 >log.txt which gives the following error that it is looking for xdr/cpr files.

ERROR: Neither one of the following files can be located:
	'input_checkpt_cp/0008_mesh.cpr/1/header.cpr' nor
	'input_checkpt_cp/0008_mesh.cpr'

[Outputs]
  exodus = true
  csv = true
  interval = 2
  execute_on = 'TIMESTEP_END'
  [./other]        # creates input_other.e
     type = Exodus
     interval = 60
  [../]
  [./checkpt]
  type = Checkpoint
  binary = false
  num_files = 2
  interval = 2
  [../]
  perf_graph = true
[]

header.cpa.txt
split-1-0.cpa.txt
0008.xda.txt

[pbehne]

#27268 Changes the checkpoint format from binary (cpr) to ascii (cpa). Compression and decompression of ascii checkpoint files is handled automatically and will work on systems without XDR support. I spoke with @permcody about adding support for users to load their old binary checkpoints and he is against it, saying that the decision has been made in the past to not keep support for older formats. With that in mind, will the current changes be sufficient to close this issue?

[GiudGiud]

If you re-enable .cpa, you can close this issue.
This issue is about .cpa being broken currently

[pbehne]

This can be closed (via #27268).

[GiudGiud]

Closing as addressed by #27268