fix: correct batched matmul strides for bs=1 and integrate CTest into build pipeline

Set stride to 0 when batch_size is 1 to enable proper broadcasting in cuBLAS,
and add configurable CTest execution after builds with googletest submodule.

Author: chen2021673

docs/test_usage_guide.md

@@ -8,7 +8,7 @@
 
 ```bash
 mkdir build && cd build
-cmake -DBUILD_TEST=ON -DUSE_CUDA=ON ..
+cmake -DBUILD_TEST=ON -DUSE_CUDA=ON -DUSE_NCCL=ON ..
 make -j$(nproc)
 ```
 

infini_train/src/kernels/cuda/matmul.cu

@@ -63,9 +63,9 @@ std::shared_ptr<Tensor> MatmulForward(const std::shared_ptr<Tensor> &input, cons
                          .alpha = 1.0f,
                          .beta = 0.0f,
                          .batch_count = static_cast<int>(bs),
-                         .stride_a = n * k,
-                         .stride_b = k * m,
-                         .stride_c = m * n,
+                         .stride_a = bs > 1 ? n * k : 0,
+                         .stride_b = bs > 1 ? k * m : 0,
+                         .stride_c = bs > 1 ? m * n : 0,
                          .input_dtype = dtype,
                          .output_dtype = dtype,
                      });
@@ -133,9 +133,9 @@ std::shared_ptr<Tensor> MatmulBackwardInput(const std::shared_ptr<Tensor> &other
                          .alpha = 1.0f,
                          .beta = 0.0f,
                          .batch_count = static_cast<int>(bs),
-                         .stride_a = k * n,
-                         .stride_b = n * m,
-                         .stride_c = m * k,
+                         .stride_a = bs > 1 ? k * n : 0,
+                         .stride_b = bs > 1 ? n * m : 0,
+                         .stride_c = bs > 1 ? m * k : 0,
                          .input_dtype = compute_dtype,
                          .output_dtype = output_dtype,
                      });
@@ -202,9 +202,9 @@ std::shared_ptr<Tensor> MatmulBackwardOther(const std::shared_ptr<Tensor> &input
                          .alpha = 1.0f,
                          .beta = 0.0f,
                          .batch_count = static_cast<int>(bs),
-                         .stride_a = n * m,
-                         .stride_b = k * m,
-                         .stride_c = n * k,
+                         .stride_a = bs > 1 ? n * m : 0,
+                         .stride_b = bs > 1 ? k * m : 0,
+                         .stride_c = bs > 1 ? n * k : 0,
                          .input_dtype = compute_dtype,
                          .output_dtype = output_dtype,
                      });

scripts/run_models_and_profile.bash

@@ -70,6 +70,8 @@ BUILD_DIR="$(read_var BUILD_DIR)";              : "${BUILD_DIR:=../build}"
 LOG_DIR="$(read_var LOG_DIR)";                  : "${LOG_DIR:=logs}"
 PROFILE_LOG_DIR="$(read_var PROFILE_LOG_DIR)";  : "${PROFILE_LOG_DIR:=./profile_logs}"
 COMPARE_LOG_DIR="$(read_var COMPARE_LOG_DIR)";  : "${COMPARE_LOG_DIR:=}"
+RUN_CTEST="$(read_var RUN_CTEST)";              : "${RUN_CTEST:=true}"
+CTEST_CMD="$(read_var CTEST_CMD)";              : "${CTEST_CMD:=ctest --output-on-failure -LE cuda -j$(nproc) && ctest --output-on-failure -L cuda -j1}"
 
 mkdir -p "$BUILD_DIR" "$LOG_DIR" "$PROFILE_LOG_DIR"
 
@@ -244,6 +246,9 @@ for ((id=0; id<num_builds; ++id)); do
     # always clean before another build
     clean_build_dir
     run_and_log "$LAST_CMAKE_CMD" "${build_id}" "no" "build"
+    if [[ "$RUN_CTEST" == "true" && "$build_profile" != "true" ]]; then
+        run_and_log "$CTEST_CMD" "ctest_${build_id}" "no" "ctest"
+    fi
 
     # profile flag for runs
     profile_flag="no"

scripts/test_config.json

@@ -7,13 +7,15 @@
         "LLAMA3_LLMC_FILEPATH": "/data/shared/InfiniTrain-dev/data/llmc/llama3/llama3.2_1B_fp32.bin",
         "PROFILE_LOG_DIR": "./profile_logs",
         "LOG_DIR": "./logs",
-        "COMPARE_LOG_DIR": ""
+        "COMPARE_LOG_DIR": "",
+        "RUN_CTEST": "true",
+        "CTEST_CMD": "ctest --output-on-failure -LE cuda -j$(nproc) && ctest --output-on-failure -L cuda -j1"
     },
     "builds": [
         {
             "id": "build_1",
             "profile": false,
-            "cmd": "cmake -DUSE_CUDA=ON -DUSE_NCCL=ON .. && make -j"
+            "cmd": "cmake -DBUILD_TEST=ON -DUSE_CUDA=ON -DUSE_NCCL=ON .. && make -j"
         },
         {
             "id": "build_2",