app-masterworker app-pingpong app-token-ring
async-wait async-waitany async-waitall
energy-link energy-ptask
- io io-raw-storage
+ io io-file-remote io-raw-storage
plugin-hostload mutex)
add_executable (s4u-${example} ${example}/s4u-${example}.cpp)
target_link_libraries(s4u-${example} simgrid)
${CMAKE_CURRENT_SOURCE_DIR}/async-waitall/s4u-async-waitall_d.xml
${CMAKE_CURRENT_SOURCE_DIR}/async-wait/s4u-async-wait_d.xml
${CMAKE_CURRENT_SOURCE_DIR}/dht-chord/s4u-dht-chord_d.xml
+ ${CMAKE_CURRENT_SOURCE_DIR}/io-file-remote/s4u-io-file-remote_d.xml
${CMAKE_CURRENT_SOURCE_DIR}/actor-lifetime/s4u-actor-lifetime_d.xml
PARENT_SCOPE)
set(txt_files ${txt_files} ${CMAKE_CURRENT_SOURCE_DIR}/actions-comm/s4u-actions-comm-split-p0.txt
dht-chord
energy-link energy-ptask
plugin-hostload mutex
- io io-raw-storage)
+ io io-file-remote io-raw-storage)
ADD_TESH_FACTORIES(s4u-${example} "thread;ucontext;raw;boost" --setenv bindir=${CMAKE_CURRENT_BINARY_DIR}/${example} --setenv srcdir=${CMAKE_HOME_DIRECTORY}/examples/platforms --cd ${CMAKE_HOME_DIRECTORY}/examples/s4u/${example} s4u-${example}.tesh)
endforeach()
Presents a set of event handlers reproducing classical I/O
primitives (open, read, close).
-@subsection s4u_ex_io Simulating disks
+@subsection s4u_ex_io Simulating disks and files
The examples of this section demonstrate how to interact with the
simulated storages.
@ref examples/s4u/io-raw-storage/s4u-io-raw-storage.cpp \n
This example illustrates how to simply read and write data on a
simulated storage resource.
+
+ - <b>Remote I/O</b>.
+ @ref examples/s4u/io-file-remote/s4u-io-file-remote.cpp \n
+ I/O operations on files can also be done in a remote fashion,
+ i.e. when the accessed disk is not mounted on the caller's host.
+
*/
/**
@example examples/s4u/app-token-ring/s4u-app-token-ring.cpp
@example examples/s4u/app-masterworker/s4u-app-masterworker.cpp
@example examples/s4u/app-pingpong/s4u-app-pingpong.cpp
-
+@example examples/s4u/io-file-remote/s4u-io-file-remote.cpp
+@example examples/s4u/io-raw-storage/s4u-io-raw-storage.cpp
@example examples/s4u/mutex/s4u-mutex.cpp
*/
\ No newline at end of file
--- /dev/null
+/* Copyright (c) 2014-2016. The SimGrid Team. All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include <simgrid/s4u.hpp>
+#include <src/plugins/file_system/FileSystem.hpp>
+#include <string>
+
+#define INMEGA (1024 * 1024)
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(remote_io, "Messages specific for this io example");
+
+static int host(int argc, char* argv[])
+{
+ simgrid::s4u::File* file = new simgrid::s4u::File(argv[1], nullptr);
+ const char* filename = file->getPath();
+ XBT_INFO("Opened file '%s'", filename);
+ file->dump();
+
+ XBT_INFO("Try to read %llu from '%s'", file->size(), filename);
+ sg_size_t read = file->read(file->size());
+ XBT_INFO("Have read %llu from '%s'. Offset is now at: %llu", read, filename, file->tell());
+ XBT_INFO("Seek back to the begining of the stream...");
+ file->seek(0, SEEK_SET);
+ XBT_INFO("Offset is now at: %llu", file->tell());
+
+ delete file;
+
+ if (argc > 5) {
+ file = new simgrid::s4u::File(argv[2], nullptr);
+ filename = file->getPath();
+ XBT_INFO("Opened file '%s'", filename);
+ XBT_INFO("Try to write %llu MiB to '%s'", file->size() / 1024, filename);
+ sg_size_t write = file->write(file->size() * 1024);
+ XBT_INFO("Have written %llu bytes to '%s'.", write, filename);
+
+ if (std::stoi(argv[5]) != 0) {
+ XBT_INFO("Move '%s' (of size %llu) from '%s' to '%s'", filename, file->size(),
+ simgrid::s4u::Host::current()->getCname(), argv[3]);
+ file->remoteMove(simgrid::s4u::Host::by_name(argv[3]), argv[4]);
+ } else {
+ XBT_INFO("Copy '%s' (of size %llu) from '%s' to '%s'", filename, file->size(),
+ simgrid::s4u::Host::current()->getCname(), argv[3]);
+ file->remoteCopy(simgrid::s4u::Host::by_name(argv[3]), argv[4]);
+ delete file;
+ }
+ }
+
+ return 0;
+}
+
+int main(int argc, char** argv)
+{
+ simgrid::s4u::Engine e(&argc, argv);
+ sg_storage_file_system_init();
+ e.loadPlatform(argv[1]);
+ e.registerFunction("host", host);
+ e.loadDeployment(argv[2]);
+
+ for (auto const& s : *simgrid::s4u::allStorages()) {
+ XBT_INFO("Init: %llu/%llu MiB used/free on '%s'", sg_storage_get_size_used(s.second) / INMEGA,
+ sg_storage_get_size_free(s.second) / INMEGA, s.second->getCname());
+ }
+
+ e.run();
+
+ for (auto const& s : *simgrid::s4u::allStorages()) {
+ XBT_INFO("End: %llu/%llu MiB used/free on '%s'", sg_storage_get_size_used(s.second) / INMEGA,
+ sg_storage_get_size_free(s.second) / INMEGA, s.second->getCname());
+ }
+
+ XBT_INFO("Simulation time %g", simgrid::s4u::Engine::getClock());
+ return 0;
+}
--- /dev/null
+#! ./tesh
+
+$ ${bindir:=.}/s4u-io-file-remote$EXEEXT ${srcdir:=.}/storage/remote_io.xml ${srcdir:=.}/../s4u/io-file-remote/s4u-io-file-remote_d.xml "--log=root.fmt:[%10.6r]%e(%i@%5h)%e%m%n"
+> [ 0.000000] (0@ ) Init: 12/476824 MiB used/free on 'Disk1'
+> [ 0.000000] (0@ ) Init: 2280/474556 MiB used/free on 'Disk2'
+> [ 0.000000] (1@alice) Opened file 'c:\Windows\setupact.log'
+> [ 0.000000] (1@alice) File Descriptor information:
+> Full path: 'c:\Windows\setupact.log'
+> Size: 101663
+> Mount point: 'c:'
+> Storage Id: 'Disk2'
+> Storage Type: 'SATA-II_HDD'
+> File Descriptor Id: 0
+> [ 0.000000] (1@alice) Try to read 101663 from 'c:\Windows\setupact.log'
+> [ 0.000000] (2@ bob) Opened file '/scratch/lib/libsimgrid.so.3.6.2'
+> [ 0.000000] (2@ bob) File Descriptor information:
+> Full path: '/scratch/lib/libsimgrid.so.3.6.2'
+> Size: 12710497
+> Mount point: '/scratch'
+> Storage Id: 'Disk1'
+> Storage Type: 'SATA-II_HDD'
+> File Descriptor Id: 0
+> [ 0.000000] (2@ bob) Try to read 12710497 from '/scratch/lib/libsimgrid.so.3.6.2'
+> [ 0.000000] (3@ carl) Opened file '/scratch/lib/libsimgrid.so.3.6.2'
+> [ 0.000000] (3@ carl) File Descriptor information:
+> Full path: '/scratch/lib/libsimgrid.so.3.6.2'
+> Size: 12710497
+> Mount point: '/scratch'
+> Storage Id: 'Disk1'
+> Storage Type: 'SATA-II_HDD'
+> File Descriptor Id: 0
+> [ 0.000000] (3@ carl) Try to read 12710497 from '/scratch/lib/libsimgrid.so.3.6.2'
+> [ 0.000000] (4@ dave) Opened file 'c:\Windows\bootstat.dat'
+> [ 0.000000] (4@ dave) File Descriptor information:
+> Full path: 'c:\Windows\bootstat.dat'
+> Size: 67584
+> Mount point: 'c:'
+> Storage Id: 'Disk2'
+> Storage Type: 'SATA-II_HDD'
+> File Descriptor Id: 0
+> [ 0.000000] (4@ dave) Try to read 67584 from 'c:\Windows\bootstat.dat'
+> [ 0.001469] (4@ dave) Have read 67584 from 'c:\Windows\bootstat.dat'. Offset is now at: 67584
+> [ 0.001469] (4@ dave) Seek back to the begining of the stream...
+> [ 0.001469] (4@ dave) Offset is now at: 0
+> [ 0.001469] (4@ dave) Opened file 'c:\Windows\Professional.xml'
+> [ 0.001469] (4@ dave) Try to write 31 MiB to 'c:\Windows\Professional.xml'
+> [ 0.003741] (1@alice) Have read 101663 from 'c:\Windows\setupact.log'. Offset is now at: 101663
+> [ 0.003741] (1@alice) Seek back to the begining of the stream...
+> [ 0.003741] (1@alice) Offset is now at: 0
+> [ 0.276315] (3@ carl) Have read 12710497 from '/scratch/lib/libsimgrid.so.3.6.2'. Offset is now at: 12710497
+> [ 0.276315] (3@ carl) Seek back to the begining of the stream...
+> [ 0.276315] (3@ carl) Offset is now at: 0
+> [ 0.387036] (2@ bob) Have read 12710497 from '/scratch/lib/libsimgrid.so.3.6.2'. Offset is now at: 12710497
+> [ 0.387036] (2@ bob) Seek back to the begining of the stream...
+> [ 0.387036] (2@ bob) Offset is now at: 0
+> [ 0.387036] (2@ bob) Opened file '/scratch/doc/simgrid/examples/platforms/g5k.xml'
+> [ 0.387036] (2@ bob) Try to write 16 MiB to '/scratch/doc/simgrid/examples/platforms/g5k.xml'
+> [ 0.528211] (4@ dave) Have written 32646144 bytes to 'c:\Windows\Professional.xml'.
+> [ 0.528211] (4@ dave) Move 'c:\Windows\Professional.xml' (of size 32646144) from 'dave' to 'carl'
+> [ 0.819921] (2@ bob) Have written 17436672 bytes to '/scratch/doc/simgrid/examples/platforms/g5k.xml'.
+> [ 0.819921] (2@ bob) Copy '/scratch/doc/simgrid/examples/platforms/g5k.xml' (of size 17436672) from 'bob' to 'alice'
+> [ 1.843969] (0@ ) End: 60/476776 MiB used/free on 'Disk1'
+> [ 1.843969] (0@ ) End: 2297/474539 MiB used/free on 'Disk2'
+> [ 1.843969] (0@ ) Simulation time 1.84397
--- /dev/null
+<?xml version='1.0'?>
+<!DOCTYPE platform SYSTEM "http://simgrid.gforge.inria.fr/simgrid/simgrid.dtd">
+<platform version="4.1">
+ <actor host="alice" function="host">
+ <argument value = "c:\Windows\setupact.log"/>
+ </actor>
+ <actor host="bob" function="host">
+ <argument value = "/scratch/lib/libsimgrid.so.3.6.2"/>
+ <argument value = "/scratch/doc/simgrid/examples/platforms/g5k.xml"/>
+ <argument value = "alice"/>
+ <argument value = "c:\Windows\Platforms\g5k.xml"/>
+ <argument value = "0"/>
+ </actor>
+ <actor host="carl" function="host">
+ <argument value = "/scratch/lib/libsimgrid.so.3.6.2"/>
+ </actor>
+ <actor host="dave" function="host">
+ <argument value = "c:\Windows\bootstat.dat"/>
+ <argument value = "c:\Windows\Professional.xml"/>
+ <argument value = "carl"/>
+ <argument value = "/scratch/mailbox/Professional.xml"/>
+ <argument value = "1"/>
+ </actor>
+</platform>
