# 配置CANN相关环境变量
CANN_INSTALL_PATH_CONF='/etc/Ascend/ascend_cann_install.info'
if [ -f $CANN_INSTALL_PATH_CONF ]; then
DEFAULT_CANN_INSTALL_PATH=$(cat $CANN_INSTALL_PATH_CONF | grep Install_Path | cut -d "=" -f 2)
else
DEFAULT_CANN_INSTALL_PATH="/usr/local/Ascend/"
fi
CANN_INSTALL_PATH=${1:-${DEFAULT_CANN_INSTALL_PATH}}
if [ -d ${CANN_INSTALL_PATH}/ascend-toolkit/latest ];then
source ${CANN_INSTALL_PATH}/ascend-toolkit/set_env.sh
else
source ${CANN_INSTALL_PATH}/nnae/set_env.sh
fi
# 导入依赖库
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/openblas/lib
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib/
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/lib64/
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/lib/
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/lib/aarch64_64-linux-gnu
# 配置自定义环境变量
export HCCL_WHITELIST_DISABLE=1
# log
export ASCEND_SLOG_PRINT_TO_STDOUT=0 # 日志打屏, 可选
export ASCEND_GLOBAL_LOG_LEVEL=3 # 日志级别常用 1 INFO级别; 3 ERROR级别
export ASCEND_GLOBAL_EVENT_ENABLE=0 # 默认不使能event日志信息 source env.sh
不支持float16类型的inf/nan数据输入输出。inf表示无穷大数值,nan表示无穷小数值,当一个数超出表示范围时会转为inf,小于能表示的精度时会转为nan。