hpc2021 Result Flag Description

Base Compiler Invocation

C benchmarks

- mpiicc
- CC, LD
- Invoke the Intel C compiler for MPI applications.
  
  You need binutils 2.16.91.0.7 or later with this compiler to support new instructions on Intel Core 2 processors

C++ benchmarks

- mpiicpc
- CXX, LD
- Invoke the Intel C++ compiler for MPI applications.
  
  You need binutils 2.16.91.0.7 or later with this compiler to support new instructions on Intel Core 2 processors

Fortran benchmarks

- mpiifort
- FC, LD
- Invoke the Intel Fortran compiler for MPI applications.
  
  You need binutils 2.16.91.0.7 or later with this compiler to support new instructions on Intel Core 2 processors

Peak Compiler Invocation

C benchmarks

- mpiicc
- CC, LD
- Invoke the Intel C compiler for MPI applications.
  
  You need binutils 2.16.91.0.7 or later with this compiler to support new instructions on Intel Core 2 processors

C++ benchmarks

- mpiicpc
- CXX, LD
- Invoke the Intel C++ compiler for MPI applications.
  
  You need binutils 2.16.91.0.7 or later with this compiler to support new instructions on Intel Core 2 processors

Fortran benchmarks

- mpiifort
- FC, LD
- Invoke the Intel Fortran compiler for MPI applications.
  
  You need binutils 2.16.91.0.7 or later with this compiler to support new instructions on Intel Core 2 processors

Base Portability Flags

513.soma_t

- -DSPEC_NO_VAR_ARRAY_REDUCE
- PORTABILITY
- Disable use of reduction with variable array reduction variable (OpenMP 4.5, OpenACC 2.7) even if compiler reports support.

521.miniswp_t

- -DUSE_KBA
- BENCH_CFLAGS
- Uses KBA to configure benchmark. FIXME.
- -DUSE_ACCELDIR
- BENCH_CFLAGS
- Uses ACCELDIR to configure benchmark. FIXME.

532.sph_exa_t

- -DSPEC_USE_LT_IN_KERNELS
- BENCH_CXXFLAGS
- Uses lookup tables for critical functions instead of computing them in-place using math functions.

Peak Portability Flags

513.soma_t

- -DSPEC_NO_VAR_ARRAY_REDUCE
- PORTABILITY
- Disable use of reduction with variable array reduction variable (OpenMP 4.5, OpenACC 2.7) even if compiler reports support.

521.miniswp_t

- -DUSE_KBA
- BENCH_CFLAGS
- Uses KBA to configure benchmark. FIXME.
- -DUSE_ACCELDIR
- BENCH_CFLAGS
- Uses ACCELDIR to configure benchmark. FIXME.

532.sph_exa_t

- -DSPEC_USE_LT_IN_KERNELS
- BENCH_CXXFLAGS
- Uses lookup tables for critical functions instead of computing them in-place using math functions.

Base Optimization Flags

C benchmarks

- -Ofast
- OPTIMIZE
- Enables -O3 -no-prec-div -fp-model fast=2 optimizations
- -xCORE-AVX512
- OPTIMIZE
- May generate Intel(R) Advanced Vector Extensions 512 (Intel(R) AVX-512) Foundation instructions, Intel(R) AVX-512 Conflict Detection instructions, Intel(R) AVX-512 Doubleword and Quadword instructions, Intel(R) AVX-512 Byte and Word instructions and Intel(R) AVX-512 Vector Length extensions, as well as the instructions enabled with CORE-AVX2.
- -qopenmp
- OPTIMIZE
- Enable the compiler to generate multi-threaded code based on the OpenMP directives (same as -fopenmp)
- -ansi-alias
- COPTIMIZE
- Enable/disable(DEFAULT) use of ANSI aliasing rules in optimizations; user asserts that the program adheres to these rules.

C++ benchmarks

- -Ofast
- OPTIMIZE
- Enables -O3 -no-prec-div -fp-model fast=2 optimizations
- -xCORE-AVX512
- OPTIMIZE
- May generate Intel(R) Advanced Vector Extensions 512 (Intel(R) AVX-512) Foundation instructions, Intel(R) AVX-512 Conflict Detection instructions, Intel(R) AVX-512 Doubleword and Quadword instructions, Intel(R) AVX-512 Byte and Word instructions and Intel(R) AVX-512 Vector Length extensions, as well as the instructions enabled with CORE-AVX2.
- -qopenmp
- OPTIMIZE
- Enable the compiler to generate multi-threaded code based on the OpenMP directives (same as -fopenmp)
- -ansi-alias
- CXXOPTIMIZE
- Enable/disable(DEFAULT) use of ANSI aliasing rules in optimizations; user asserts that the program adheres to these rules.

Fortran benchmarks

- -Ofast
- OPTIMIZE
- Enables -O3 -no-prec-div -fp-model fast=2 optimizations
- -xCORE-AVX512
- OPTIMIZE
- May generate Intel(R) Advanced Vector Extensions 512 (Intel(R) AVX-512) Foundation instructions, Intel(R) AVX-512 Conflict Detection instructions, Intel(R) AVX-512 Doubleword and Quadword instructions, Intel(R) AVX-512 Byte and Word instructions and Intel(R) AVX-512 Vector Length extensions, as well as the instructions enabled with CORE-AVX2.
- -qopenmp
- OPTIMIZE
- Enable the compiler to generate multi-threaded code based on the OpenMP directives (same as -fopenmp)

Peak Optimization Flags

C benchmarks

- -Ofast
- OPTIMIZE
- Enables -O3 -no-prec-div -fp-model fast=2 optimizations
- -xCORE-AVX512
- OPTIMIZE
- May generate Intel(R) Advanced Vector Extensions 512 (Intel(R) AVX-512) Foundation instructions, Intel(R) AVX-512 Conflict Detection instructions, Intel(R) AVX-512 Doubleword and Quadword instructions, Intel(R) AVX-512 Byte and Word instructions and Intel(R) AVX-512 Vector Length extensions, as well as the instructions enabled with CORE-AVX2.
- -qopenmp
- OPTIMIZE
- Enable the compiler to generate multi-threaded code based on the OpenMP directives (same as -fopenmp)
- -ansi-alias
- COPTIMIZE
- Enable/disable(DEFAULT) use of ANSI aliasing rules in optimizations; user asserts that the program adheres to these rules.

C++ benchmarks

- -Ofast
- OPTIMIZE
- Enables -O3 -no-prec-div -fp-model fast=2 optimizations
- -xCORE-AVX512
- OPTIMIZE
- May generate Intel(R) Advanced Vector Extensions 512 (Intel(R) AVX-512) Foundation instructions, Intel(R) AVX-512 Conflict Detection instructions, Intel(R) AVX-512 Doubleword and Quadword instructions, Intel(R) AVX-512 Byte and Word instructions and Intel(R) AVX-512 Vector Length extensions, as well as the instructions enabled with CORE-AVX2.
- -qopenmp
- OPTIMIZE
- Enable the compiler to generate multi-threaded code based on the OpenMP directives (same as -fopenmp)
- -ansi-alias
- CXXOPTIMIZE
- Enable/disable(DEFAULT) use of ANSI aliasing rules in optimizations; user asserts that the program adheres to these rules.

Fortran benchmarks

- -Ofast
- OPTIMIZE
- Enables -O3 -no-prec-div -fp-model fast=2 optimizations
- -xCORE-AVX512
- OPTIMIZE
- May generate Intel(R) Advanced Vector Extensions 512 (Intel(R) AVX-512) Foundation instructions, Intel(R) AVX-512 Conflict Detection instructions, Intel(R) AVX-512 Doubleword and Quadword instructions, Intel(R) AVX-512 Byte and Word instructions and Intel(R) AVX-512 Vector Length extensions, as well as the instructions enabled with CORE-AVX2.
- -qopenmp
- OPTIMIZE
- Enable the compiler to generate multi-threaded code based on the OpenMP directives (same as -fopenmp)

For questions about the meanings of these flags, please contact the tester.
For other inquiries, please contact info@spec.org
Copyright 2021-2023 Standard Performance Evaluation Corporation
Tested with SPEC hpc2021 v1.0.2.
Report generated on 2023-08-25 19:03:18 by SPEC hpc2021 flags formatter v1.0.3 .

hpc2021 Flag Description

Test sponsored by Helmholtz-Zentrum Dresden - Rossendorf

Base Compiler Invocation

C benchmarks

C++ benchmarks

Fortran benchmarks

Peak Compiler Invocation

C benchmarks

C++ benchmarks

Fortran benchmarks

Base Portability Flags

513.soma_t

521.miniswp_t

532.sph_exa_t

Peak Portability Flags

513.soma_t

521.miniswp_t

532.sph_exa_t

Base Optimization Flags

C benchmarks

C++ benchmarks

Fortran benchmarks

Peak Optimization Flags

C benchmarks

C++ benchmarks

Fortran benchmarks

	Indicates that the flag description came from the user flags file.
	Indicates that the flag description came from the suite-wide flags file.
	Indicates that the flag description came from a per-benchmark flags file.