fix: close issue #249 — Emscripten OOM in CKKS unit tests - #1215
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fix: close issue #249 — Emscripten OOM in CKKS unit tests#1215BAder82t wants to merge 2 commits into
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PR #1179 added ClearBootstrapPrecom and ClearSchemeSwitchPrecom helpers but did not wire them into ReleaseAllContexts. This change completes that work, then re-enables the EVAL_FAST_ROTATION and CONTEXT_WITH_SERTYPE tests that PR #985 had to guard under !defined(__EMSCRIPTEN__) for the original std::bad_alloc failure. Library changes (no hot-path touched): - ReleaseAllContexts now walks every live context and calls ClearAllCKKSCaches before clearing the static maps. - Adds malloc_zone_pressure_relief(Apple) and _heapmin(MSVC) to AllocTrim. - Add ClearAllCKKSCaches convenience on CryptoContextImpl. - ClearBootstrapPrecom and ClearSchemeSwitchPrecom bodies made noexcept-safe so the walk does not throw on contexts that have not Enable(FHE)'d or Enable(SCHEMESWITCH)'d. Test changes: - Mid-test ClearAllCKKSCaches between JSON and BINARY rounds in UnitTestCKKSrnsSerialize. - UTCKKSCacheClear extends its WITH_TCM skip to __EMSCRIPTEN__ (the heap-probe helper has no emmalloc backend). - Remove the !defined(__EMSCRIPTEN__) guards around the affected rows. CI: - Add .github/workflows/emscripten.yml: builds with emsdk 3.1.59 and runs pke_tests/core_tests under node in two slices. Validated on macOS + WASM: - Native: pke_tests 1892/1892 pass, core_tests 158/158 pass. - WASM: CKKS slice 939/941 pass (2 heap-probe tests skipped), BFV+BGV+binfhe slice 324/324 pass, peak 1.6 GB. Closes #249.
Make the process-wide allocator tuning introduced in #1213 opt-out via a new build flag, since it changes malloc policy for the whole host application (freed memory is retained in-process, raising resident set size for workloads with large transient peaks). - Gate the glibc mallopt(M_MMAP_MAX=0, M_TRIM_THRESHOLD=-1) startup tuning behind WITH_MALLOC_TUNING and propagate the flag through config_core.h; build with -DWITH_MALLOC_TUNING=OFF to disable. - Document per-platform behavior in explicit branches: macOS libmalloc already retains freed memory (madvise-reusable pages plus the large cache), and the Windows process heap exposes no retention knob. - Rewrite the __APPLE__ branch of AllocTrim() to use the supported malloc_zone_pressure_relief(NULL, 0) all-zones call instead of the malloc_get_all_zones()/mach introspection API, dropping <mach/mach.h>. - Docs: add the new flag and the previously undocumented options (GIT_SUBMOD_AUTO, WITH_COVTEST, WITH_NOISE_DEBUG, WITH_REDUCED_NOISE, USE_MACPORTS) to the CMake flags table, and fix stale defaults (WITH_BE2 is OFF; the default math backend is 4, not 2).
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-Rebased and addressed conflicts introduced by #1213 Did not verify the Emscripten changes. Will wait for @dsuponitskiy to review and approve/deny the proposed ci changes. |
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Closes #249. Resubmission of #1208 / #1214 from an org branch as requested.
PR #1179 added the cache-clear helpers but didn't wire them into
ReleaseAllContexts. This wires the walk in, makes the per-context clears noexcept-safe, and re-enables the 16 rows previously guarded under!__EMSCRIPTEN__(EVAL_FAST_ROTATION_41–48,CONTEXT_WITH_SERTYPE_01–08).UTCKKSCacheClearextends its existingWITH_TCMskip to__EMSCRIPTEN__— its heap probes rely onmallinfo2. Newemscripten.ymlruns emsdk 3.1.59 + node slices so this can't go silent again.No hot-path file is touched.
Validated locally
pke_tests1892/1892,core_tests158/158NATIVE_SIZE=64): the 16 re-enabled rows pass; CKKS slice 939/941 (2 heap-probe skips), BFV+BGV+binfhe 324/324; peak ~1.6 GB / 4 GB cap