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feat(scheduler-sim-live-allocation): thread core state through allocation context and host search (task 2.1)

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Retypes xce_sched_ctx_t.sched (sched/types.h) from void* to
xce_sched_core_t* outright, and sched_try_alloc_on_host_() (resource.c)
to take xce_sched_core_t* directly -- completing what tasks 1.2/1.3
left as temporary &(sched->core) call-site wraps. Removes the two
resulting struct-prefix casts entirely (schedobj.c's
sched_ctx_set_primary(), host_iter.c's sched_host_iter_next()): both
now pass core state through honestly, with no cast.

Updates every sched_ctx_init()/sched_try_alloc_on_host_() call site
tree-wide (scheduler.c, parjob_allocator.c, seqjob_allocator.c) with
zero change to host_iter/parjob/seqjob's own host-iteration/
bucket-construction algorithm.

Adds a driver-parity test for sched_try_alloc_on_host_() proving
identical grant/deny results from normal-mode-shaped and
simulation-mode-shaped core state.

Flags (for task 2.3) a confirmed-dead, type-confused write at
plugins/limit.c:319 (ctx.sched = plugin->sched) -- never read today,
left untouched since limit.c is task 2.3's boundary, not this one's.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RLSNJhNoULvVcUhXEFafQC
This commit is contained in:
Rongsong Shen 2026-09-18 13:52:14 +00:00
parent 55173fca27
commit d52c78e4be
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GPG key ID: 5BCDAAE0123E9FE2
14 changed files with 229 additions and 54 deletions
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11
src/scheduler/include/scheduler.h
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@ -360,8 +360,17 @@ extern xce_alloc_t** sched_make_allocs(xce_scheduler_t*, char*, int, int*,
* deleted) so both seqjob_allocator.c and parjob_allocator.c can call this
* shared Composition-Algorithm try_alloc leaf directly with real
* parameters, instead of each carrying its own private copy. */
/* scheduler-sim-live-allocation spec, task 2.1 (Core-Safe Allocation
* Chain): retyped from xce_scheduler_t* to xce_sched_core_t* -- callers
* still owning an xce_scheduler_t* (e.g. seqjob_allocator.c's/parjob_
* allocator.c's my_alloc()/parjob_try_plan_(), which derive their own
* `sched` from the plugin's separate, untouched xce_sched_plugin_t.sched
* field) pass &(sched->core); both xce_scheduler_t and
* xce_sched_sim_driver_t embed xce_sched_core_t core as their first-class
* field, so either driver's own core state satisfies this signature
* identically. */
extern int sched_try_alloc_on_host_(xce_sched_worker_t*,
xce_scheduler_t*,
xce_sched_core_t*,
xce_sched_ctx_t*);
extern int get_resvals(zarray_t*, int, int*, float*);
extern int put_resvals(zarray_t*, int, int*, float*);