madness::RMI Class Reference

This class implements the communications server thread and provides the only send interface. More...

#include <worldrmi.h>

Collaboration diagram for madness::RMI:

Classes
class	RmiTask

Public Types
typedef SafeMPI::Request	Request

Static Public Member Functions
static void	assert_aslr_off (const SafeMPI::Intracomm &comm=SafeMPI::COMM_WORLD)
static void	begin (const SafeMPI::Intracomm &comm=SafeMPI::COMM_WORLD)
static void	end ()
static bool	get_debug ()
static const RMIStats &	get_stats ()
static bool	get_this_thread_is_server ()
static Request	isend (const void *buf, size_t nbyte, ProcessID dest, rmi_handlerT func, unsigned int attr=ATTR_UNORDERED)
	Send a remote method invocation (again you should probably be looking at worldam.h instead) More...
static std::size_t	max_msg_len ()
	Returns the size of recv buffers, in bytes. More...
static std::size_t	maxq ()
static std::size_t	nrecv ()
	Returns the number of recv buffers. More...
static void	set_debug (bool status)
static void	set_this_thread_is_server (bool flag=true)

Static Public Attributes
static const size_t	ALIGNMENT = 64
static const attrT	ATTR_ORDERED =0x1
static const attrT	ATTR_UNORDERED =0x0
static const size_t	HEADER_LEN = ALIGNMENT
static std::list< std::unique_ptr< RMISendReq > >	send_req
static int	testsome_backoff_us = 2

Private Types
typedef qmsg::attrT	attrT
typedef qmsg::counterT	counterT

Private Member Functions
	RMI (const RMI &)
RMI &	operator= (const RMI &)

Static Private Member Functions
static void	clear_send_req ()
static bool &	is_server_thread_accessor ()

Static Private Attributes
static bool	debugging = false
static const size_t	DEFAULT_MAX_MSG_LEN = 3*512*1024
	the default size of recv buffers, in bytes; the actual size can be configured by the user via envvar MAD_BUFFER_SIZE More...
static const int	DEFAULT_NRECV = 128
	the default # of recv buffers; the actual number can be configured by the user via envvar MAD_RECV_BUFFERS More...
static RMIStats	stats
static std::unique_ptr< RmiTask >	task_ptr = nullptr

Detailed Description

This class implements the communications server thread and provides the only send interface.

Member Typedef Documentation

attrT

typedef qmsg::attrT madness::RMI::attrT

private

counterT

typedef qmsg::counterT madness::RMI::counterT

private

Request

typedef SafeMPI::Request madness::RMI::Request

Constructor & Destructor Documentation

RMI()

madness::RMI::RMI ( const RMI &  )

private

Member Function Documentation

assert_aslr_off()

void madness::RMI::assert_aslr_off ( const SafeMPI::Intracomm &  comm = SafeMPI::COMM_WORLD )

static

will complain to std::cerr and throw if ASLR is on by making sure that address of this function matches across comm

Parameters

[in]

comm

the communicator

References madness::detail::compare_fn_addresses(), SafeMPI::Intracomm::Get_rank(), MADNESS_ASSERT, MADNESS_EXCEPTION, MPI_LONG, SafeMPI::Op_create(), SafeMPI::Op_free(), and SafeMPI::Intracomm::Reduce().

Referenced by begin().

begin()

void madness::RMI::begin ( const SafeMPI::Intracomm &  comm = SafeMPI::COMM_WORLD )

static

References assert_aslr_off(), MADNESS_ASSERT, madness::myusleep(), madness::rmi_task_is_running, task_ptr, madness::ThreadPool::tbb_arena, and testsome_backoff_us.

clear_send_req()

static void madness::RMI::clear_send_req ( )

inlinestaticprivate

References max, madness::RMIStats::max_serv_send_q, send_req, and stats.

Referenced by madness::RMI::RmiTask::process_some().

end()

static void madness::RMI::end ( )

inlinestatic

References task_ptr.

get_debug()

static bool madness::RMI::get_debug ( )

inlinestatic

References debugging.

get_stats()

static const RMIStats& madness::RMI::get_stats ( )

inlinestatic

References stats.

Referenced by madness::WorldProfileObj::~WorldProfileObj(), and madness::print_stats().

get_this_thread_is_server()

static bool madness::RMI::get_this_thread_is_server ( )

inlinestatic

References is_server_thread_accessor().

Referenced by madness::WorldAmInterface::send().

is_server_thread_accessor()

bool & madness::RMI::is_server_thread_accessor ( )

staticprivate

Returns

reference to the boolean variable indicating whether this thread is the server thread

Referenced by get_this_thread_is_server(), and set_this_thread_is_server().

isend()

static Request madness::RMI::isend ( const void *  buf, size_t  nbyte, ProcessID  dest, rmi_handlerT  func, unsigned int  attr = ATTR_UNORDERED  )

inlinestatic

Send a remote method invocation (again you should probably be looking at worldam.h instead)

Parameters

[in]	buf	Pointer to the data buffer (do not modify until send is completed)
[in]	nbyte	Size of the data in bytes
[in]	dest	Process to receive the message
[in]	func	The function to handle the message on the remote end
[in]	attr	Attributes of the message (ATTR_UNORDERED or ATTR_ORDERED)

Returns

The status as an RMI::Request that presently is a SafeMPI::Request

References madness::func(), MADNESS_EXCEPTION, madness::print_error(), and task_ptr.

Referenced by madness::WorldAmInterface::send().

max_msg_len()

static std::size_t madness::RMI::max_msg_len ( )

inlinestatic

Returns the size of recv buffers, in bytes.

Returns

The size of recv buffers, in bytes

Note

The default value is given by RMI::DEFAULT_MAX_MSG_LEN, can be overridden at runtime by the user via environment variable MAD_BUFFER_SIZE.

Warning

Cannot be smaller than 1024 bytes.

References MADNESS_ASSERT, and task_ptr.

Referenced by madness::BinSorter< T, inserterT >::BinSorter(), and Foo::Foo().

maxq()

static std::size_t madness::RMI::maxq ( )

inlinestatic

References MADNESS_ASSERT, and task_ptr.

nrecv()

static std::size_t madness::RMI::nrecv ( )

inlinestatic

Returns the number of recv buffers.

Returns

The number of recv buffers

Note

The default value is given by RMI::DEFAULT_NRECV, can be overridden at runtime by the user via environment variable MAD_RECV_BUFFERS

Warning

Cannot be smaller than 32.

References MADNESS_ASSERT, and task_ptr.

operator=()

RMI& madness::RMI::operator= ( const RMI &  )

private

set_debug()

static void madness::RMI::set_debug ( bool  status )

inlinestatic

References debugging, and status.

set_this_thread_is_server()

static void madness::RMI::set_this_thread_is_server ( bool  flag = true )

inlinestatic

References is_server_thread_accessor().

Referenced by madness::RMI::RmiTask::run().

Member Data Documentation

ALIGNMENT

const size_t madness::RMI::ALIGNMENT = 64

static

Referenced by madness::RMI::RmiTask::RmiTask(), and madness::RMI::RmiTask::post_pending_huge_msg().

ATTR_ORDERED

const attrT madness::RMI::ATTR_ORDERED =0x1

static

Referenced by madness::RMI::RmiTask::is_ordered().

ATTR_UNORDERED

const attrT madness::RMI::ATTR_UNORDERED =0x0

static

Referenced by madness::WorldGopInterface::bcast_task(), madness::WorldGopInterface::group_bcast_task(), madness::WorldObject< Derived >::send_task(), and madness::WorldTaskQueue::send_task().

debugging

bool madness::RMI::debugging = false

staticprivate

Referenced by madness::RMI::RmiTask::exit(), get_debug(), madness::RMI::RmiTask::process_some(), and set_debug().

DEFAULT_MAX_MSG_LEN

const size_t madness::RMI::DEFAULT_MAX_MSG_LEN = 3*512*1024

staticprivate

the default size of recv buffers, in bytes; the actual size can be configured by the user via envvar MAD_BUFFER_SIZE

Referenced by madness::RMI::RmiTask::RmiTask().

DEFAULT_NRECV

const int madness::RMI::DEFAULT_NRECV = 128

staticprivate

the default # of recv buffers; the actual number can be configured by the user via envvar MAD_RECV_BUFFERS

Referenced by madness::RMI::RmiTask::RmiTask().

HEADER_LEN

const size_t madness::RMI::HEADER_LEN = ALIGNMENT

static

Referenced by madness::RMI::RmiTask::huge_msg_handler().

send_req

std::list< std::unique_ptr< RMISendReq > > madness::RMI::send_req

static

Referenced by clear_send_req(), and madness::WorldAmInterface::send().

stats

RMIStats madness::RMI::stats

staticprivate

Referenced by clear_send_req(), get_stats(), and madness::RMI::RmiTask::process_some().

task_ptr

std::unique_ptr< RMI::RmiTask > madness::RMI::task_ptr = nullptr

staticprivate

Referenced by begin(), end(), madness::RMI::RmiTask::huge_msg_handler(), isend(), max_msg_len(), maxq(), and nrecv().

testsome_backoff_us

int madness::RMI::testsome_backoff_us = 2

static

Referenced by begin(), and madness::RMI::RmiTask::process_some().

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The documentation for this class was generated from the following files:

• worldrmi.h
• worldrmi.cc