1 files changed, 47 insertions, 0 deletions
diff --git a/Common/derived.py b/Common/derived.py
new file mode 100644
index 0000000..fae3da5
--- /dev/null
+++ b/Common/derived.py
@@ -0,0 +1,47 @@
+"""
+Derived Quantities.
+"""
+
+
+def compute_utilization(number_of_nodes_down, \
+                        number_of_jobs_by_partition):
+    """
+    Compute Cluster Utilization.
+
+    @todo: Less Hardcoding.
+
+    @param: number_of_nodes_down - [Dict {'partition': 2, ...}]
+    @param: number_of_jobs_by_partition - [Dict {'zbox': {'running': 1}, ...]
+    @return: utilization - [Dict {'cpu': 0.3, 'tasna': 0.5, ..., 'gpu': 0.9}]
+    """
+
+    utilization = {}
+
+    # CPU Utilization (Without Hyperthreading)
+    # 2 Sockets per Server, 8 Cores per Socket, 192 Servers = 3072 Cores
+    total_cpu_cores = 16*192
+    cpu_nodes_down = number_of_nodes_down['cpu']*16
+    allocated_cpu_cores = number_of_jobs_by_partition['cpu']['running']
+    utilization['cpu'] = \
+        float(allocated_cpu_cores) / float(total_cpu_cores - cpu_nodes_down)
+
+    # Tasna Utilization
+    # 4 GTX 590 Boards per Server, 2 GPUs per Board, 5 Servers = 40 Slots
+    total_tasna_slots = 40 - number_of_nodes_down['tasna']
+    allocated_tasna_slots = number_of_jobs_by_partition['tasna']['running']
+    utilization['tasna'] = \
+        float(allocated_tasna_slots) / float(total_tasna_slots)
+
+    # Vesta Utilization
+    # 8 K80 Boards per Server, 2 GPUs per Board, 2 Servers = 32 Slots
+    total_vesta_slots = 32 - number_of_nodes_down['vesta']
+    allocated_vesta_slots = number_of_jobs_by_partition['vesta']['running']
+    utilization['vesta'] = \
+        float(allocated_vesta_slots) / float(total_vesta_slots)
+
+    # GPU Utilization
+    total_gpu_slots = total_tasna_slots + total_vesta_slots
+    allocated_gpu_slots = allocated_tasna_slots + allocated_vesta_slots
+    utilization['gpu'] = float(allocated_gpu_slots) / float(total_gpu_slots)
+
+    return utilization