diff options
Diffstat (limited to 'examples/placement-models-minizinc/vdns-use-case')
4 files changed, 88 insertions, 0 deletions
diff --git a/examples/placement-models-minizinc/vdns-use-case/vDNS-service-gold-customer-model-driven-placement.dzn b/examples/placement-models-minizinc/vdns-use-case/vDNS-service-gold-customer-model-driven-placement.dzn new file mode 100644 index 0000000..6a3222f --- /dev/null +++ b/examples/placement-models-minizinc/vdns-use-case/vDNS-service-gold-customer-model-driven-placement.dzn @@ -0,0 +1,16 @@ +N_CLOUD_REGIONS = 3; % e-dc-1, core-dc-1, core-dc-2 +N_ATTRIBUTES = 4; +N_METRICS = 2; + +CUST_TYPE = GOLD; + +W_METRICS = [0.9, 0.1]; +W_ATTRIBUTES = [0, 0.9, 0.05, 0.05]; + +capabilities = [| 0, 0, 1, 1 + | 1, 0, 1, 1 + | 1, 1, 0, 1 |]; + +utilization = [| 0.05, 0.9 + | 0.1, 0.5 + | 0.8, 0.98 |]; diff --git a/examples/placement-models-minizinc/vdns-use-case/vDNS-service-model-driven-placement.mzn b/examples/placement-models-minizinc/vdns-use-case/vDNS-service-model-driven-placement.mzn new file mode 100644 index 0000000..08292be --- /dev/null +++ b/examples/placement-models-minizinc/vdns-use-case/vDNS-service-model-driven-placement.mzn @@ -0,0 +1,40 @@ +int: N_CLOUD_REGIONS; % number of cloud regions + +int: N_ATTRIBUTES; % number of capability related attributes +array[1..N_ATTRIBUTES] of float: W_ATTRIBUTES; % weights of each attribute + +int: N_METRICS; % number of dynamic capacity metrics of interest +array[1..N_METRICS] of float: W_METRICS; % weights of each capacity metric + +int: CUST_TYPE; % customer type, 0 = regular, 1 = silver, 2 = gold + +enum CUST_TYPES = { STANDARD, SILVER, GOLD }; +enum ATTRIBUTES = { CORE_DC, DIRECT_CONN, MIN_GUARANTEE, SRIOV }; +enum METRICS = { AVG_UTILIZATION, PEAK_UTILIZATION }; + +% whether a cloud region has the corresponding capability -- data will be customer specific +array[1..N_CLOUD_REGIONS, 1..N_ATTRIBUTES] of int: capabilities; +array[1..N_CLOUD_REGIONS, 1..N_METRICS] of float: utilization; % how much capacity is already utilized (fraction) + +var int: s; % target cloud region (solution to the problem) + +% custom constraints +constraint capabilities[s, CORE_DC] = 1; % hard constraint: has to be placed in CORE DC +constraint utilization[s, AVG_UTILIZATION] <= 0.85; % hard constraint: need some capacity available +% custom soft constraint for gold customers -- give a large weight to direct connection +var float: additional_obj = bool2int(CUST_TYPE = GOLD) * capabilities[s, DIRECT_CONN] * 1000; + +% TODO: global constraints (such as data validation) + +% Objective for utilization +var float: obj_utilization = sum(k in 1..N_METRICS) ( W_METRICS[k] * (1 - utilization[s, k]) ); + +% Objective for capabilities +var float: obj_capabilities = sum(k in 1..N_ATTRIBUTES) ( W_ATTRIBUTES[k] * capabilities[s, k] ); + +% Overall objective function +var float: obj = obj_utilization + obj_capabilities + additional_obj; % can later add weights to each... + +solve maximize obj; + +output ["Cloud Region: ", show(s), "\n", "Objective function value: ", show(obj), "\n", "Customer type: ", show(CUST_TYPE), "\n"]; diff --git a/examples/placement-models-minizinc/vdns-use-case/vDNS-service-no-edge-dc-model-driven-placement.dzn b/examples/placement-models-minizinc/vdns-use-case/vDNS-service-no-edge-dc-model-driven-placement.dzn new file mode 100644 index 0000000..3a2a000 --- /dev/null +++ b/examples/placement-models-minizinc/vdns-use-case/vDNS-service-no-edge-dc-model-driven-placement.dzn @@ -0,0 +1,16 @@ +N_CLOUD_REGIONS = 3; % e-dc-1, core-dc-1, core-dc-2 +N_ATTRIBUTES = 4; +N_METRICS = 2; + +CUST_TYPE = GOLD; + +W_METRICS = [0.9, 0.1]; +W_ATTRIBUTES = [0, 0.9, 0.05, 0.05]; + +capabilities = [| 0, 0, 1, 1 + | 1, 0, 1, 1 + | 1, 1, 0, 1 |]; + +utilization = [| 0.05, 0.9 + | 0.1, 0.5 + | 0.95, 1.0 |]; diff --git a/examples/placement-models-minizinc/vdns-use-case/vDNS-service-silver-customer-model-driven-placement.dzn b/examples/placement-models-minizinc/vdns-use-case/vDNS-service-silver-customer-model-driven-placement.dzn new file mode 100644 index 0000000..c99bb99 --- /dev/null +++ b/examples/placement-models-minizinc/vdns-use-case/vDNS-service-silver-customer-model-driven-placement.dzn @@ -0,0 +1,16 @@ +N_CLOUD_REGIONS = 3; % e-dc-1, core-dc-1, core-dc-2 +N_ATTRIBUTES = 4; +N_METRICS = 2; + +CUST_TYPE = SILVER; + +W_METRICS = [0.9, 0.1]; +W_ATTRIBUTES = [0, 0.9, 0.05, 0.05]; + +capabilities = [| 0, 0, 1, 1 + | 1, 0, 1, 1 + | 1, 0, 1, 1 |]; + +utilization = [| 0.05, 0.9 + | 0.1, 0.5 + | 0.8, 0.98 |]; |