The article presents a markup domain-specific language (DSL) for concurrent programming. Runtime libraries and language extensions are the usual ways to implement parallel execution. However, their using often requires a special programming skill. The modern languages with build-in parallel constructs are more convenient for programming, but they are poorly integrated with existing high performance computing infrastructure. We propose a compromise solution which uses DSL together with C++ programming language. The article discusses syntax, programming model, and some practical applications of the language.