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Fix: Validate asymptotic entries with precise roots and fallback

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Use scaled long-double quadratic arithmetic without explicit FMA. Validate entry candidates against backend geometry and localize uncertain entries along the original exterior trajectory.

Preserve conservative miss semantics and propagate concrete entry failures. Add production-sample and numerical regression coverage.
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wyj committed 2026-10-09 00:14:54 -04:00
1 parent 95c05f84d9
commit 789549ed2f
16 files changed
+2421 -93
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Makefile
+16 -1
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@@ -108,6 +108,8 @@ TEST_OUT_DIR := $(OBJECT_DIR)/$(HDR_BUILD_TAG)
TEST_TARGET := $(TEST_OUT_DIR)/test_geodesic
ADAPTIVE_GEODESIC_TEST_TARGET := $(TEST_OUT_DIR)/test_geodesic_adaptive
ASYMPTOTIC_TEST_TARGET := $(TEST_OUT_DIR)/test_asymptotic
ASYMPTOTIC_ENTRY_TEST_TARGET := $(TEST_OUT_DIR)/test_asymptotic_entry
ASYMPTOTIC_QUADRATIC_TEST_TARGET := $(TEST_OUT_DIR)/test_asymptotic_quadratic
ASYMPTOTIC_SCHWARZSCHILD_TEST_TARGET := $(TEST_OUT_DIR)/test_asymptotic_schwarzschild
TERMINATION_ORACLE_TEST_TARGET := $(TEST_OUT_DIR)/test_termination_oracle
FRAME_TEST_TARGET := $(TEST_OUT_DIR)/test_frame
@@ -217,9 +219,20 @@ $(ADAPTIVE_GEODESIC_TEST_TARGET): tests/test_geodesic_adaptive.c $(COMMON_SOURCE
$(ASYMPTOTIC_TEST_TARGET): tests/test_asymptotic.c $(CORE_MINKOWSKI_SOURCES) $(CPU_FFTW_SOURCES) | $(TEST_OUT_DIR)
$(CC) $(CPPFLAGS) $(BUILD_CPPFLAGS) $(CFLAGS) $(BUILD_CFLAGS) $(OPENMP_FLAGS) -Isrc $^ $(LDLIBS) -o $@
# The test includes asymptotic.c to cover its private floating-point kernel.
$(ASYMPTOTIC_QUADRATIC_TEST_TARGET): tests/test_asymptotic_quadratic.c $(CORE_MINKOWSKI_SOURCES) $(CPU_FFTW_SOURCES) | $(TEST_OUT_DIR)
$(CC) $(CPPFLAGS) $(BUILD_CPPFLAGS) $(CFLAGS) $(BUILD_CFLAGS) $(OPENMP_FLAGS) -Isrc $(filter-out src/asymptotic.c,$^) $(LDLIBS) -o $@
$(ASYMPTOTIC_SCHWARZSCHILD_TEST_TARGET): tests/test_asymptotic_schwarzschild.c $(COMMON_SOURCES) src/spacetime_schwarzschild.c $(CPU_FFTW_SOURCES) | $(TEST_OUT_DIR)
$(CC) $(CPPFLAGS) $(BUILD_CPPFLAGS) $(CFLAGS) $(BUILD_CFLAGS) $(OPENMP_FLAGS) -DSPACETIME_SCHWARZSCHILD -Isrc $^ $(LDLIBS) -o $@
# Independent core regression for the backend-free numerical entry localizer.
# It links only the new module and the shared spacetime dispatch wrapper: no
# analytic backend, no geodesic integrator and no asymptotic.c are required,
# so it stays exercisable independently of the route integration.
$(ASYMPTOTIC_ENTRY_TEST_TARGET): tests/test_asymptotic_entry.c src/asymptotic_entry.c src/spacetime_common.c src/asymptotic_entry.h src/asymptotic.h src/geodesic.h src/spacetime.h src/observer.h | $(TEST_OUT_DIR)
$(CC) $(CPPFLAGS) $(BUILD_CPPFLAGS) $(CFLAGS) $(BUILD_CFLAGS) $(OPENMP_FLAGS) -Isrc tests/test_asymptotic_entry.c src/asymptotic_entry.c src/spacetime_common.c $(LDLIBS) -o $@
$(FRAME_TEST_TARGET): tests/test_frame.c $(CORE_MINKOWSKI_SOURCES) $(CPU_FFTW_SOURCES) | $(TEST_OUT_DIR)
$(CC) $(CPPFLAGS) $(BUILD_CPPFLAGS) $(CFLAGS) $(BUILD_CFLAGS) $(OPENMP_FLAGS) -Isrc $^ $(LDLIBS) -o $@
@@ -280,12 +293,14 @@ FAST_PSF_FFTW_TEST_DEP :=
FAST_PSF_FFTW_TEST_RUN :=
endif
test: $(CAMERA_TEST_TARGETS) $(TEST_TARGET) $(ADAPTIVE_GEODESIC_TEST_TARGET) $(ASYMPTOTIC_TEST_TARGET) $(ASYMPTOTIC_SCHWARZSCHILD_TEST_TARGET) $(TERMINATION_ORACLE_TEST_TARGET) $(FRAME_TEST_TARGET) $(SCHWARZSCHILD_TEST_TARGET) $(ALCUBIERRE_TEST_TARGET) $(OBSERVER_TRACK_TEST_TARGET) $(CATALOG_PREFETCH_TEST_TARGET) $(FAST_PSF_FFTW_TEST_DEP) $(TONE_MAP_TEST_TARGET) $(MOVIE_OUTPUT_TEST_TARGET) $(SENSOR_BLOOM_TEST_TARGET)
test: $(CAMERA_TEST_TARGETS) $(TEST_TARGET) $(ADAPTIVE_GEODESIC_TEST_TARGET) $(ASYMPTOTIC_TEST_TARGET) $(ASYMPTOTIC_ENTRY_TEST_TARGET) $(ASYMPTOTIC_QUADRATIC_TEST_TARGET) $(ASYMPTOTIC_SCHWARZSCHILD_TEST_TARGET) $(TERMINATION_ORACLE_TEST_TARGET) $(FRAME_TEST_TARGET) $(SCHWARZSCHILD_TEST_TARGET) $(ALCUBIERRE_TEST_TARGET) $(OBSERVER_TRACK_TEST_TARGET) $(CATALOG_PREFETCH_TEST_TARGET) $(FAST_PSF_FFTW_TEST_DEP) $(TONE_MAP_TEST_TARGET) $(MOVIE_OUTPUT_TEST_TARGET) $(SENSOR_BLOOM_TEST_TARGET)
$(TEST_OUT_DIR)/test_observer_minkowski
$(TEST_OUT_DIR)/test_observer_schwarzschild
$(TEST_TARGET)
$(ADAPTIVE_GEODESIC_TEST_TARGET)
$(ASYMPTOTIC_TEST_TARGET)
$(ASYMPTOTIC_ENTRY_TEST_TARGET)
$(ASYMPTOTIC_QUADRATIC_TEST_TARGET)
$(ASYMPTOTIC_SCHWARZSCHILD_TEST_TARGET)
$(TERMINATION_ORACLE_TEST_TARGET)
$(FRAME_TEST_TARGET)