diff --git a/cocluto/inventory.py b/cocluto/inventory.py
index 00b8d3f..b9e1c7b 100644
--- a/cocluto/inventory.py
+++ b/cocluto/inventory.py
@@ -1,4 +1,5 @@
 # encoding: utf-8
+from typing import List
 import datetime
 # from Lib import SimpaDbUtil
 from . import SimpaDbUtil
@@ -147,7 +148,7 @@ class Inventory(object):
         slot_index = self._sql_reader.get_table_attr('rackable_machine_to_location', 'machine_id', machine_id, 'slot_index')
         return rack_id, slot_index
 
-    def get_cpu_dflops(self, cpu_model):
+    def get_cpu_dflops(self, cpu_model) -> float:
         '''
         returns the number of double precision operation per second this cpu can achieve
         '''
@@ -159,9 +160,29 @@ class Inventory(object):
         # print(num_cores, clock_speed, dflops_per_core_per_cycle)
         return clock_speed * dflops_per_core_per_cycle * num_cores
 
+    def get_gpu_ram(self, gpu_id: str) -> float:
+        mib_to_bytes = 1024 * 1024
+        gpu_model_id = self.machine_name_to_machine_spec_id(gpu_id)
+        ram_size = int(self._sql_reader.get_table_attr('gpu_specs', 'gpu_model_id', gpu_model_id, 'ram_mib')) * mib_to_bytes
+        return ram_size
+
+    def get_gpu_dflops(self, gpu_id: str) -> float:
+        gpu_model_id = self.machine_name_to_machine_spec_id(gpu_id)
+        dflops = int(self._sql_reader.get_table_attr('gpu_specs', 'gpu_model_id', gpu_model_id, 'peak_dgflops'))
+        return dflops
+
     def get_num_cpus(self, computer_name):
         return int(self._sql_reader.get_table_attr('computer_to_cpu', 'computer_id', computer_name, 'num_cpu'))
 
+    def get_gpus(self, computer_id: str) -> List[str]:
+        '''returns the gpu_ids of the gpus installed in the given computer'''
+        gpu_ids = []
+        rows = self._sql_reader.query("SELECT gpu_id FROM gpu_to_computer WHERE computer_id='%s'" % computer_id)
+        for row in rows:
+            gpu_id = row[0]
+            gpu_ids.append(gpu_id)
+        return gpu_ids
+
     def get_num_cores(self, computer_name):
         num_cpus = int(self._sql_reader.get_table_attr('computer_to_cpu', 'computer_id', computer_name, 'num_cpu'))
         cpu_model = self._sql_reader.get_table_attr('computer_to_cpu', 'computer_id', computer_name, 'cpu_model')
diff --git a/setup.py b/setup.py
index f17c4c7..f6795d7 100644
--- a/setup.py
+++ b/setup.py
@@ -2,12 +2,12 @@ from setuptools import setup
 
 setup(
     name='cocluto',
-    version=1.02,
+    version=1.03,
     description='compute cluster utility tools',
     url='https://git.ipr.univ-rennes1.fr/graffy/cocluto',
     author='Guillaume Raffy',
     author_email='guillaume.raffy@univ-rennes1.fr',
     license='MIT',
     packages=['cocluto'],
-    install_requires=['pygraphviz'],  # requires apt install graphviz-dev
+    install_requires=['pygraphviz', 'mysqlclient'],  # requires apt install graphviz-dev
     zip_safe=False)