REPIN follows live session heat (decaying heat map; .coli_usage stays the persistent signal) + disk→RAM→VRAM promotion (#26)

c/Makefile

@@ -37,7 +37,7 @@ CUDA_ARCH ?= native
 NVCCFLAGS ?= -O3 -std=c++17 -arch=$(CUDA_ARCH) -Xcompiler=-Wall,-Wextra
 PYTHON    ?= python3
 CUDA_OBJ  =
-TEST_BINS = tests/test_json tests/test_st
+TEST_BINS = tests/test_json tests/test_st tests/test_tier
 ifeq ($(CUDA),1)
 ifeq ($(UNAME_S),Darwin)
 $(error CUDA=1 is supported only on Linux)
@@ -74,6 +74,9 @@ tests/test_json: tests/test_json.c json.h
 tests/test_st: tests/test_st.c st.h json.h compat.h
 	$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
 
+tests/test_tier: tests/test_tier.c tier.h
+	$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
+
 test-c: $(TEST_BINS)
 	@for test in $(TEST_BINS); do ./$$test || exit 1; done