enable the persistence daemon and set the graphics operation mode (GOM)

roles/gpu/tasks/main.yml

@@ -35,18 +35,37 @@
   become: true
   become_user: root
 
+- name: template unit for for persistenced
+  template: src=nvidia-persistenced.service dest=/etc/systemd/system/nvidia-persistenced.service
+  become: true
+  become_user: root
+
+- name: create the nvidia-persistenced user
+  user: name=nvidia-persistenced state=present system=yes shell=/bin/false
+  become: true
+  become_user: root
+
+- name: enable persistenced on boot
+  service: name=nvidia-persistenced state=started enabled=yes
+  become: true
+  become_user: root
+
+
+- name: remove nouveau
+  modprobe: name=nouveau state=absent
+  become: true 
+  become_user: root
+
 - name: check nvidia driver
-  shell: ls /usr/lib64/libnvidia-opencl.so.{{ nvidia_version }} 
-  register: drivers_installed
+  stat: path="/usr/lib64/libnvidia-opencl.so.{{ nvidia_version }}"
+  register: opencl
   ignore_errors: true
 
 - name: get nvidia driver 
-  shell: wget http://consistency0/src/NVIDIA-Linux-x86_64-{{ nvidia_version }}.run
-  args:
-    chdir: /tmp
-    creates: /tmp/NVIDIA-Linux-x86_64-{{ nvidia_version }}.run
-  sudo: true 
-  when: drivers_installed | failed
+  get_url: url=http://consistency0/src/NVIDIA-Linux-x86_64-{{ nvidia_version }}.run dest=/tmp/NVIDIA-Linux-x86_64-{{ nvidia_version }}.run
+  become: true
+  become_user: root
+  when: not opencl.stat.exists
 
 #- name: Copy boot file
 #  template: src=grub.conf.j2 dest=/boot/grub/grub.conf 
@@ -60,54 +79,12 @@
   template: src=xserver.j2 dest=/etc/pam.d/xserver
   sudo: true
 
-- name: look for nouveau
-  shell: /usr/sbin/lsmod
-  register: lsmod_output
-
-- name: set nouveau string
-  set_fact: nouveau='nouveau'
-
-
-- name: restart_host
-  shell: sleep 5 ; shutdown -r now "Reboot triggered by Ansible"
-  async: 2
-  poll: 1
-  sudo: true
-  ignore_errors: true
-  when: nouveau in lsmod_output.stdout
-
-- name: waiting for server to come back
-  local_action: wait_for host={{ ansible_host }} state=started port=22 delay=10 search_regex=OpenSSH
-  sudo: false
-  when: nouveau in lsmod_output.stdout
-
-
 - name: build nvidia driver 
   shell: chmod 755 /tmp/NVIDIA-Linux-x86_64-{{ nvidia_version }}.run; /tmp/NVIDIA-Linux-x86_64-{{ nvidia_version }}.run --silent
   sudo: true
-  when: drivers_installed | failed
-
-- name: restart_host
-  shell: sleep 5 ; shutdown -r now "Reboot triggered by Ansible"
-  async: 2
-  poll: 1
-  sudo: true
-  ignore_errors: true
-  when: drivers_installed | failed
-
-- name: waiting for server to come back
-  local_action: wait_for host={{ ansible_host }} state=started port=22 delay=10 search_regex=OpenSSH
-  sudo: false
-  when: drivers_installed|failed
-
-#- name: set persistence mode 
-#  lineinfile: 
-#  args:
-#    dest: /etc/rc.d/rc.local
-#    line: "nvidia-smi --persistence-mode=1"  
-#    state: present
-#  sudo: true
-#- name: Load module
-#  shell: modprobe nvidia
-#  sudo: true
+  when: not opencl.stat.exists
 
+- name: set the GOM
+  shell: nvidia-smi --gom=0
+  become: true
+  become_user: root