npb,hnpl

npb's Introduction

This repo adds m5 annotations to the NAS Parallel Benchmarks located in NPB/NPB3.4-OMP.

The annotations are added to the timed sections as follows,

An m5_work_begin() call before timer_start(t_bench), or timer_start(t_total), or an equivalent.
An m5_work_end() call after timer_stop(t_bench), or timer_stop(t_total), or an equivalent.

Notes:

For the DC benchmark, the work is split into tasks via OMP directive. Each task uses a different timer for its timed section. To keep it simple, we decided to put an m5_work_begin() before the OMP task directive, and another m5_work_end() after the OMP task directive.

In order to compile the benchmarks with m5 annotations, the following environment variables must be set,

M5_ANNOTATION # If M5_ANNOTATION=1, the build system will compile the binaries
              # with m5 annotations.

GEM5_INCLUDE_DIR # Path to the gem5's include/ directory.
                 # Typically, the path is gem5/include.

GEM5_M5_ABI_DIR # Path to m5 utility abi folder for a specific ISA.
                # Typically,
                # For x86: gem5/util/m5/src/abi/x86/
                # For arm64: gem5/util/m5/src/abi/arm64/
                # For riscv: gm5/util/m5/src/abi/riscv

If you're cross compiling, you might want to set additional environment variables as follows,

FC # Path to the gfortran compiler for compiling **guest** binaries.
CC # Path to the gcc compiler for compiling **guest** binaries.
UCC # Path to the gcc compiler for compiling utilities **guest** objects.
SYS_UCC # Path to the gcc compiler for compiling utilities **host** objects.

Recommend Projects