optaplanner – Why does my Tabu search step score keep decreasing in REPRODUCIBLE mode, but not in FAST_ASSERT mode

I have modeled an overconstrained rostering problem and implemented incremental score calculations based on constraint streams. Strangely enough, my local search performance is very poor when I set the environment mode to REPRODUCIBLE, but not when I set it to FAST_ASSERT. I ran the benchmarker with the following configuration: <plannerBenchmark xmlns=”https://www.optaplanner.org/xsd/benchmark” xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:schemaLocation=”https://www.optaplanner.org/xsd/benchmark https://www.optaplanner.org/xsd/benchmark/benchmark.xsd”> <benchmarkDirectory>/Users/martijn/Downloads/benchmark</benchmarkDirectory> … Read more

Building a GRPC Server With Rust. A step by step guide | by Yuchen Z. | May, 2022

A step by step guide Image Credit: https://www.rust-lang.org/ RPC vs JSON vs SOAP Once I learn about gRPC and Thrift, it is hard to go back to using the more transitional JSON-based REST API or SOAP API. The two well-known RPC frameworks, gRPC, and Thrift, have many similarities. The former originates from Google while the … Read more

5 Common Step Functions Issues

Step Functions, the serverless finite state machine service from AWS. With DynamoDB, Lambda, and API Gateway, it forms the core of serverless AWS services. If you have tasks with multiple steps and you want to ensure they will get executed in the proper order, Step Functions is your service of choice. It offers direct integrations … Read more