^
pathf95-389 pathf90: ERROR BORDERS, File = communicate.F, Line = 407, Column = 18
No specific match can be found for the generic subprogram call "MPI_RECV".
If it is necessary to use a non-standard argument list, it is advisable to create your own MPI module file, and compile the application with it, rather than the standard MPI module file that is shipped in the mpi-devel-* RPM.
The default search path for the module file is: /usr/include
To include your own MPI.mod rather than the standard version, use
-I/your/search/directorywhich will cause /your/search/directory to be checked before /usr/include:
Usage for Fortran95 will be similar to the example for Fortran90.
mpif90 -I/your/search/directory myprogram.f90
$
C – Troubleshooting InfiniPath MPI Troubleshooting

Q

C.8.10

Extending MPI Modules

MPI implementations provide certain procedures which accept an argument having any data type, any precision, and any rank, but it isn’t practical for an MPI module to enumerate every possible combination of type, kind, and rank. Therefore the strict type checking required by Fortran 90 may generate errors.

For example, if the MPI module tells the compiler that "mpi_bcast" can operate on an integer but does not also say that it can operate on a character string, you may see a message similar to the following one:

pathf95: ERROR INPUT, File = input.F, Line = 32, Column = 14 No specific match can be found for the generic subprogram call "MPI_BCAST".

If you know that an argument can in fact accept a data type which the MPI module doesn’t explicitly allow, you can extend the interface for yourself. For example, here’s a program which illustrates how to extend the interface for "mpi_bcast" so that it accepts a character type as its first argument, without losing the ability to accept an integer type as well:

module additional_bcast use mpi

implicit none interface mpi_bcast

module procedure additional_mpi_bcast_for_character end interface mpi_bcast

contains

subroutine additional_mpi_bcast_for_character(buffer, count, datatype, & root, comm, ierror)

character*(*) buffer

C-20

IB6054601-00 D

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Q-Logic IB6054601-00 D manual Extending MPI Modules
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IB6054601-00 D specifications

The Q-Logic IB6054601-00 D is a high-performance InfiniBand adapter card designed for data centers and enterprise applications requiring robust connectivity and low-latency communication. This adapter is part of QLogic's extensive portfolio of networking solutions, catering to the needs of high-performance computing (HPC), cloud computing, and virtualization environments.

One of the standout features of the IB6054601-00 D is its capability to support data transfer rates of up to 56 Gbps. This makes it ideal for applications demanding large bandwidth and quick data processing. The adapter is optimized for RDMA (Remote Direct Memory Access) technology, which allows data to be transferred directly between the memory of different computers without involving the CPU. This reduces latency and CPU overhead, leading to enhanced overall system performance.

The architecture of the IB6054601-00 D includes support for a dual-port design, which offers increased bandwidth, redundancy, and fault tolerance. This dual-port configuration is especially advantageous for environments that require high availability and reliability, such as financial services and mission-critical applications.

The adapter utilizes advanced error detection and correction mechanisms, ensuring that data integrity is maintained during transmission. With features like adaptive routing and congestion management, the IB6054601-00 D is capable of optimizing the handling of data flows, thereby enhancing performance even under heavy loads.

In terms of compatibility, the Q-Logic IB6054601-00 D supports a wide range of operating systems and virtualization technologies, making it easy to integrate into diverse IT environments. It also includes drivers and software packages that facilitate seamless deployment and management.

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Overall, the Q-Logic IB6054601-00 D stands out for its high throughput, low latency, and reliability. Its combination of advanced features and technologies positions it as an excellent choice for organizations looking to enhance their data center performance and maximize the efficiency of their network infrastructure. With the growing demands for faster and more efficient data transfer, solutions like the IB6054601-00 D are essential in meeting the evolving needs of modern enterprises.
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