Encoding data options in parallel virtual machine , Computer Networking

Encoding data options

PVM uses SUN's XDR library to generate a machine independent data format if you request it. Settings for the encoding option are:

PvmDataDefault: Use XDR by default, as the local library cannot know in advance where you are going to send the data.

PvmDataRaw: No encoding, so make sure you are sending to a same machine.

PvmDataInPlace: Not only is there no encoding, but the data is not still going to be physically copied into the buffer.

  • int info = pvm_freebuf( int bufid )

Disposes of a message buffer. bufid  message buffer identifier.

  • int pvm_getsbuf( void )

returns the active send buffer identifier.

  • int pvm_getrbuf( void )

returns the active receive buffer identifier.

  • int pvm_setsbuf( int bufid )

sets the active send  buffer to bufid, saves the state of the last buffer, and returns the last active buffer identifier.

  • int pvm_setrbuf( int bufid )

sets the active  receive buffer to bufid, saves the state of the last buffer, and returns the last active buffer identifier.

  • intpvm_initsend( int encoding )

 Clear default sends buffer and states the message encoding. Encoding states the next message's encoding scheme.

  • int pvm_send( int tid, int msgtag )

Instantaneously sends the data in the active message buffer.  tid Integer task identifier of destination process. msgtag Integer message tag provides by the user. msgtag should be nonnegative.

  • int pvm_recv( int tid, int msgtag )

Receive a message. tid is integer task identifier of sending process supplied by the user and msgtag is the message tag supplied by the user( should be non negative integer). The process returns the value of the new active receives buffer identifier. Values less than zero specify an error. It blocks the process until a message with label msgtag has arrived from tid. pvm_recv then places the message in a new active receive buffer, which also obvious the current receive buffer.

Posted Date: 3/2/2013 7:25:44 AM | Location : United States







Related Discussions:- Encoding data options in parallel virtual machine , Assignment Help, Ask Question on Encoding data options in parallel virtual machine , Get Answer, Expert's Help, Encoding data options in parallel virtual machine Discussions

Write discussion on Encoding data options in parallel virtual machine
Your posts are moderated
Related Questions
I WOULD LIKE TO MAKE MY SELF CLEAR WHETHER THIS TYPE OF PROGRAMS ARE BASED ON COMPLETE SEVER RELATED AND MAINTENANCE OF AN ENTIRE SMALL ENTERPRISE NETWORK.

The Internet protocol mentions the rules that describe the details of how computers communicate. It exactly mentions how a packet should be formed & how a router should forward eac

How Firewall configuration makes all the difference The greatest blunder that any company make is to just install a firewall and think that they have ensured perfect securit

Ku-BAND EARTH STATION This is most recent on-going project under which 40 remote sites will be installed for CDMA back haul and 60 sites will be installed for GSM back haul. 4

What are the five major network services? Major Network Services are: a. File Services b. Message Services c.  Print Services  d.  Application Services e.  Datab

What is the difference among Windows 2000 and Windows 2003?

Radio Waves - Frequency ranges: 3 KHz to 1 GHz - Omni directional - Susceptible to interference by other antennas utilizing same frequency or band - Ideal for long-di

Question : a) What does association refer to in IEEE 802.11? b) State the fundamental principles of 3GPP security. c) Explain the term "binding" in Mobile IPv6 d)

Question 1 Discuss the following                     Evolution of Data Communication                     Elements of Data Communication System Question 2 Explain the following

Define the term - public knowledge information It is essential to distinguish between public knowledge information and the more detailed pieces of information relating to spec