metrics: Use a specific python version to run tensorflow benchmark

This PR uses a specific python version to run tensorflow benchmark
as it needs python 3.8 to run correctly and avoid failures.

Fixes #8791

Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>

tests/metrics/machine_learning/tensorflow_nhwc.sh

@@ -5,6 +5,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 set -o pipefail
+set -x
 
 # General env
 SCRIPT_PATH=$(dirname "$(readlink -f "$0")")
@@ -116,6 +117,10 @@ function tensorflow_nhwc_test() {
 		sudo -E "${CTR_EXE}" t exec --exec-id "$(random_name)" "${i}" sh -c "cat /${ALEXNET_FILE}"  >> "${alexnet_tensorflow_file}"
 	done
 
+	info "Check files"
+	cat "${resnet_tensorflow_file}"
+	cat "${alexnet_tensorflow_file}"
+
 	# Parsing resnet results
 	local resnet_results=$(cat "${resnet_tensorflow_file}" | grep "total images/sec" | cut -d ":" -f2 | sed -e 's/^[ \t]*//' | tr '\n' ',' | sed 's/.$//')
 	local res_sum="$(sed -e 's/,/\n/g' <<< ${resnet_results} | awk 'BEGIN {total=0} {total += $1} END {print total}')"

tests/metrics/machine_learning/tensorflow_nhwc_dockerfile/Dockerfile

@@ -11,8 +11,12 @@ LABEL DOCKERFILE_VERSION="1.0"
 ENV DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update && \
-	apt-get install -y --no-install-recommends build-essential git && \
+	apt-get install -y --no-install-recommends build-essential git zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev libsqlite3-dev wget libbz2-dev && \
 	apt-get remove -y unattended-upgrades && \
-	git clone https://github.com/tensorflow/benchmarks
+	git clone https://github.com/tensorflow/benchmarks && \
+	wget -q https://www.python.org/ftp/python/3.8.10/Python-3.8.10.tgz && \
+	tar xzf Python-3.8.10.tgz && \
+	cd Python-3.8.10 && \
+	./configure --enable-optimizations && make altinstall && make install
 
 CMD ["/bin/bash"]