fix typo

Author: zhouwg

llama.cpp

@@ -15402,8 +15402,10 @@ struct llama_context * llama_new_context_with_model(
         }
 #elif defined(GGML_USE_QNN)
         if (model->n_gpu_layers > 0) {
-            //the second param is package name of Andorid app, can be got by JNI from Java layer
-            ggml_backend_t backend = ggml_backend_qnn_init(model->main_gpu, "/data/data/com.ggml.llamacpp/");
+            //the second param is data path of prebuit QNN libs provided by Qualcomm
+            //in Andorid APP mode, can be obtained through JNI from Java layer
+            //in Andorid terminal mode, can be hardcoded to "/data/local/tmp"
+            ggml_backend_t backend = ggml_backend_qnn_init(model->main_gpu, "/data/local/tmp/");
             if (nullptr == backend) {
                 LLAMA_LOG_ERROR("%s: failed to initialize QNN backend\n", __func__);
                 llama_free(ctx);

tests/ggml-qnn/CMakeLists.txt

@@ -1,11 +1,12 @@
 cmake_minimum_required(VERSION 3.22.1)
-project(ggml-qnn)
+project(ggml-qnn-test)
 
 set(CMAKE_VERBOSE_MAKEFILE          on)
 set(CMAKE_CXX_STANDARD              17)
 set(CMAKE_CXX_STANDARD_REQUIRED     ON)
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 
+#set to ON if target Android phone is based on Qualcomm Snapdragon 8 Gen 3
 set(TARGET_SNAPDRAGON_8_GEN3        OFF)
 
 set(LLAMACPP_SRC_PATH               ${PROJECT_ROOT_PATH})
@@ -37,8 +38,10 @@ message("target name          : ${TARGET_NAME}")
 add_definitions(-D__ARM_NEON)
 add_definitions(-DGGML_USE_QNN)
 
+if(CMAKE_BUILD_TYPE STREQUAL "release")
 add_definitions(-DNDEBUG)
 add_definitions(-O3)
+endif()
 
 if (TARGET_SNAPDRAGON_8_GEN3)
 # the below build optimization only works well on Qualcomm SM8650-AB Snapdragon 8 Gen 3

tests/ggml-qnn/build-ggml-qnn.sh

@@ -10,12 +10,15 @@ QNN_SDK_PATH=/opt/qcom/aistack/qnn/2.20.0.240223/
 
 
 ANDROID_NDK=`pwd`/android-ndk-r26c
+ANDROID_PLATFORM=android-34
+#BUILD_TYPE=release
+BUILD_TYPE=debug
 TARGET=ggml-qnn-test
 
 
 function dump_vars()
 {
-    echo -e "PROJECT_ROOT_PATH:    ${PROJECT_ROOT_PATH}"
+    echo -e "LLAMACPP_ROOT_PATH:   ${LLAMACPP_ROOT_PATH}"
     echo -e "ANDROID_NDK:          ${ANDROID_NDK}"
     echo -e "QNN_SDK_PATH:         ${QNN_SDK_PATH}"
 }
@@ -61,7 +64,7 @@ function check_and_download_ndk()
 
 function build_arm64
 {
-    cmake -H. -B./out/arm64-v8a -DPROJECT_ROOT_PATH=${LLAMACPP_ROOT_PATH} -DTARGET_NAME=${TARGET} -DCMAKE_BUILD_TYPE=${PROJECT_BUILD_TYPE} -DANDROID_ABI=arm64-v8a -DANDROID_PLATFORM=${ANDROID_PLATFORM} -DANDROID_NDK=${ANDROID_NDK}  -DCMAKE_TOOLCHAIN_FILE=${ANDROID_NDK}/build/cmake/android.toolchain.cmake -DQNN_SDK_PATH=${QNN_SDK_PATH}
+    cmake -H. -B./out/arm64-v8a -DPROJECT_ROOT_PATH=${LLAMACPP_ROOT_PATH} -DTARGET_NAME=${TARGET} -DCMAKE_BUILD_TYPE=${BUILD_TYPE} -DANDROID_ABI=arm64-v8a -DANDROID_PLATFORM=${ANDROID_PLATFORM} -DANDROID_NDK=${ANDROID_NDK}  -DCMAKE_TOOLCHAIN_FILE=${ANDROID_NDK}/build/cmake/android.toolchain.cmake -DQNN_SDK_PATH=${QNN_SDK_PATH}
 
     cd ./out/arm64-v8a
     make

tests/ggml-qnn/run-ggml-qnn.sh

@@ -1,6 +1,8 @@
 #!/bin/bash
 
-#modify following lines to adapt to local dev envs
+#modify following line to adapt to local dev envs
+#https://qpm.qualcomm.com/#/main/tools/details/qualcomm_ai_engine_direct
+#https://developer.qualcomm.com/software/hexagon-dsp-sdk/tools
 QNN_SDK_PATH=/opt/qcom/aistack/qnn/2.20.0.240223/
 
 GGML_QNN_TEST=ggml-qnn-test
@@ -10,7 +12,7 @@ adb push ${GGML_QNN_TEST} ${REMOTE_PATH}
 
 adb shell ls ${REMOTE_PATH}/libQnnCpu.so
 if [ $? -eq 0 ]; then
-    printf "QNN libs already exist\n"
+    printf "QNN libs already exist on Android phone\n"
 else
     adb push ${QNN_SDK_PATH}/lib/aarch64-android/libQnnSystem.so              ${REMOTE_PATH}/
     adb push ${QNN_SDK_PATH}/lib/aarch64-android/libQnnCpu.so                 ${REMOTE_PATH}/