The PGI compiler family is produced by The Portland Group which is owned by Nvidia, Inc. It is available on SCC. The following table summarizes some relevant commands on the SCC:
- Pgi Fortran Compiler Cracked Version
- Pgi Fortran Compiler Cracked Version
- Pgi Fortran Cuda
- Pgi Fortran Compiler Cracked Version 1
- Pgi Fortran Compiler
The C/C++ and Fortran compilers use the same optimization flags, and both compilers have manuals available:
PGI Professional Edition is a perpetual license to current and all previous releases of the PGI Fortran, C and C compilers and tools for multicore CPUs and NVIDIA Tesla GPUs, including all OpenACC, OpenMP and CUDA Fortran features. Enables development of performance-portable HPC applications with uniform source code across the most widely.
Pgi Fortran Compiler Cracked Version
- PGI Fortran compilers offer world-class performance and features including both automatic and OpenMP 3.0 parallelization support for optimizing performance on multi-core processors. State-of-the-art compiler technologies found in PVF include vectorization, parallelization, interprocedural analysis, memory hierarchy.
- PGI Visual Fortran 2008 v10.8 with VS2008 Shell 614.76 MB. PGI Fortran compilers offer world-class performance and features including both automatic and OpenMP 3.0 parallelization support for optimizing performance on multi-core processors. State-of-the-art compiler technologies found in PVF include vectorization, parallelization.
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- High-performance PGI Compilers PVF features the latest version of PGI’s native OpenMP andauto-parallel Fortran compilers. PGI compilers are supported on andcan generate fully optimized code for a broad range of popularhigh-performance computing platforms including 64-bit x64 and32-bit x86 processor-based systems.
The Portland Group has an online reference manual that describes their compiler flags in detail.
General Compiler Optimization Flags
The basic optimization flags are summarized below.
Flags to Specify SIMD Instructions
These flags will produce executables that contain specific SIMD instructions which may effect compatibility with compute nodes on the SCC.
Default Optimization Behavior
The PGI compilers by default will always produce executables that are tuned for the architecture of the compiling computer. This means that without the -tp=x64 or -tp=px flags the output executable when compiled on the SCC login nodes will only be compatible with the Broadwell architecture. The CPU architecture type of all of the login nodes on the SCC is Broadwell.
Recommendations
Here are recommendations for compiling codes on SCC. Either the -tp=x64 or -tp=px flags should be used for compute node compatibility. The -tp=x64 flag will generally produce faster code at the cost of longer compile times. The -tp=px flag will usually compile notably faster.
Pgi Fortran Compiler Cracked Version
It is recommended that these flags be used to build executables on the SCC. Here is an examples:
The generated executable will run on any compute node, and it is optimized with most -fast flags – some will be automatically removed if they conflict with -tp=x64 . The -tp=x64 option will produce a program with multiple execution paths for all of the supported architectures. The program will select the correct one when it is run on a compute node.
Pgi Fortran Cuda
To build an optimized executable for Intel Broadwell on the login nodes on the SCC:
Pgi Fortran Compiler Cracked Version 1
The executable is optimized for Intel Broadwell because the login nodes use that architecture and the -tp flag was not used. To run this executable, submit a batch job to to a Broadwell compute node:
Another option is to compile the code as part of a batch job which completely avoids any architectural issues and allows for the maximum amount of optimizations. For example, a job that is submitted to run on a Buy-in node equipped with an Ivybridge architecture CPU could be compiled with tunings for that node. As a precaution the source is copied into $TMPDIR: