artdaq_mpich_plugin  v1_00_00
routing_master_t.cc
1 #define TRACE_NAME "routing_master_t"
2 #include "MPIProg.hh"
3 #include "artdaq/DAQrate/detail/RoutingPacket.hh"
4 #include "artdaq/DAQdata/TCPConnect.hh"
6 #include "cetlib/filepath_maker.h"
7 #include "fhiclcpp/ParameterSet.h"
8 #include "fhiclcpp/make_ParameterSet.h"
9 
10 #include <boost/program_options.hpp>
11 #include "artdaq/Application/RoutingMasterCore.hh"
12 #include "artdaq/Application/RoutingMasterApp.hh"
13 #include <netdb.h>
14 namespace bpo = boost::program_options;
15 
16 #include <algorithm>
17 #include <cmath>
18 #include <cstdio>
19 
20 extern "C"
21 {
22 #include <unistd.h>
23 }
24 
25 #include <iostream>
26 #include <memory>
27 #include <utility>
28 #include <arpa/inet.h>
29 #include <netinet/in.h>
30 #include <sys/types.h>
31 #include <sys/socket.h>
32 
33 extern "C"
34 {
35 #include <sys/time.h>
36 #include <sys/resource.h>
37 }
38 
42 class RoutingMasterTest : public MPIProg
43 {
44 public:
59  RoutingMasterTest(int argc, char* argv[]);
60 
64  void go();
65 
69  void generate_tokens();
70 
74  void routing_master();
75 
79  void table_receiver();
80 
87  fhicl::ParameterSet getPset(int argc, char* argv[]) const;
88 
89 private:
90  enum class TestRole_t : int
91  {
92  TOKEN_GEN = 0,
93  ROUTING_MASTER = 1,
94  TABLE_RECEIVER = 2
95  };
96 
97  void printHost(const std::string& functionName) const;
98 
99  fhicl::ParameterSet const pset_;
100  fhicl::ParameterSet const daq_pset_;
101  TestRole_t role_;
102 
103  std::string routing_master_address_;
104  std::string multicast_address_;
105  int token_port_;
106  int table_port_;
107  int ack_port_;
108  std::vector<int> eb_ranks_;
109  int token_count_;
110  size_t token_interval_us_;
111 };
112 
113 RoutingMasterTest::RoutingMasterTest(int argc, char* argv[]) :
114  MPIProg(argc, argv)
115  , pset_(getPset(argc, argv))
116  , daq_pset_(pset_.get<fhicl::ParameterSet>("daq"))
117  , routing_master_address_(daq_pset_.get<std::string>("routing_master_hostname", "localhost"))
118  , multicast_address_(daq_pset_.get<std::string>("table_update_address", "227.128.12.28"))
119  , token_port_(daq_pset_.get<int>("routing_token_port", 35555))
120  , table_port_(daq_pset_.get<int>("table_update_port", 35556))
121  , ack_port_(daq_pset_.get<int>("table_acknowledge_port", 35557))
122  , token_count_(pset_.get<int>("token_count", 1000))
123  , token_interval_us_(pset_.get<size_t>("token_interval_us", 5000))
124 {
125  assert(!(my_rank < 0));
126  switch (my_rank)
127  {
128  case 0:
129  role_ = TestRole_t::TOKEN_GEN;
130  break;
131  case 1:
132  role_ = TestRole_t::ROUTING_MASTER;
133  break;
134  default:
135  role_ = TestRole_t::TABLE_RECEIVER;
136  break;
137  }
138  auto policy_pset = daq_pset_.get<fhicl::ParameterSet>("policy");
139  eb_ranks_ = policy_pset.get<std::vector<int>>("receiver_ranks");
140 
141 }
142 
143 fhicl::ParameterSet RoutingMasterTest::getPset(int argc, char* argv[]) const
144 {
145  std::ostringstream descstr;
146  descstr << "-- <-c <config-file>>";
147  bpo::options_description desc(descstr.str());
148  desc.add_options()
149  ("config,c", bpo::value<std::string>(), "Configuration file.");
150  bpo::variables_map vm;
151  try
152  {
153  bpo::store(bpo::command_line_parser(argc, argv).
154  options(desc).allow_unregistered().run(), vm);
155  bpo::notify(vm);
156  }
157  catch (bpo::error const& e)
158  {
159  std::cerr << "Exception from command line processing in Config::getArtPset: " << e.what() << "\n";
160  throw "cmdline parsing error.";
161  }
162  if (!vm.count("config"))
163  {
164  std::cerr << "Expected \"-- -c <config-file>\" fhicl file specification.\n";
165  throw "cmdline parsing error.";
166  }
167  fhicl::ParameterSet pset;
168  cet::filepath_lookup lookup_policy("FHICL_FILE_PATH");
169  fhicl::make_ParameterSet(vm["config"].as<std::string>(), lookup_policy, pset);
170 
171  return pset;
172 }
173 
175 {
176  MPI_Barrier(MPI_COMM_WORLD);
177  //std::cout << "daq_pset_: " << daq_pset_.to_string() << std::endl << "conf_.makeParameterSet(): " << conf_.makeParameterSet().to_string() << std::endl;
178 
179  switch (role_)
180  {
181  case TestRole_t::TABLE_RECEIVER:
182  table_receiver();
183  break;
184  case TestRole_t::ROUTING_MASTER:
185  routing_master();
186  break;
187  case TestRole_t::TOKEN_GEN:
188  generate_tokens();
189  break;
190  default:
191  throw "No such node type";
192  }
193  TLOG(TLVL_DEBUG) << "Rank " << my_rank << " complete." ;
194 }
195 
197 {
198  TLOG(TLVL_DEBUG) << "generate_tokens(): Init" ;
199  printHost("generate_tokens");
200  sleep(1);
201 
202  int token_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
203  if (token_socket < 0)
204  {
205  TLOG(TLVL_ERROR) << "generate_tokens(): I failed to create the socket for sending Routing Tokens!" ;
206  exit(1);
207  }
208  struct sockaddr_in token_addr;
209  auto sts = ResolveHost(routing_master_address_.c_str(), token_port_, token_addr);
210  if(sts == -1)
211  {
212  TLOG(TLVL_ERROR) << "generate_tokens(): Could not resolve host name" ;
213  }
214 
215  connect(token_socket, (struct sockaddr*)&token_addr, sizeof(token_addr));
216 
217  int sent_tokens = 0;
218  std::map<int, int> token_counter;
219  for(auto rank : eb_ranks_)
220  {
221  token_counter[rank] = 0;
222  }
223  while (sent_tokens < token_count_) {
224  int this_rank = eb_ranks_[seedAndRandom() % eb_ranks_.size()];
225  token_counter[this_rank]++;
226  artdaq::detail::RoutingToken token;
227  token.header = TOKEN_MAGIC;
228  token.rank = this_rank;
229  token.new_slots_free = 1;
230 
231  TLOG(TLVL_DEBUG) << "generate_tokens(): Sending RoutingToken " << std::to_string(++sent_tokens) << " for rank " << this_rank << " to " << routing_master_address_ ;
232  send(token_socket, &token, sizeof(artdaq::detail::RoutingToken), 0);
233  usleep(token_interval_us_);
234  }
235  auto max_rank = 0;
236  for(auto rank : token_counter)
237  {
238  if (rank.second > max_rank) max_rank = rank.second;
239  }
240  for(auto rank : token_counter)
241  {
242  artdaq::detail::RoutingToken token;
243  token.header = TOKEN_MAGIC;
244  token.rank = rank.first;
245  token.new_slots_free = max_rank - rank.second;
246 
247  TLOG(TLVL_DEBUG) << "generate_tokens(): Sending RoutingToken " << std::to_string(++sent_tokens) << " for rank " << rank.first << " to " << routing_master_address_ ;
248  send(token_socket, &token, sizeof(artdaq::detail::RoutingToken), 0);
249  usleep(token_interval_us_);
250 
251  }
252 
253  TLOG(TLVL_INFO) << "generate_tokens(): Waiting at MPI_Barrier" ;
254  MPI_Barrier(MPI_COMM_WORLD);
255  TLOG(TLVL_INFO) << "generate_tokens(): Done with MPI_Barrier" ;
256 }
257 
259 {
260  TLOG(TLVL_DEBUG) << "table_receiver(): Init" ;
261  printHost("table_receiver");
262 
263 
264  auto table_socket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
265  if (table_socket < 0)
266  {
267  TLOG(TLVL_ERROR) << "table_receiver(): Error creating socket for receiving data requests!" ;
268  exit(1);
269  }
270 
271  struct sockaddr_in si_me_request;
272 
273  int yes = 1;
274  if (setsockopt(table_socket, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0)
275  {
276  TLOG(TLVL_ERROR) << "table_receiver(): Unable to enable port reuse on request socket" ;
277  exit(1);
278  }
279  memset(&si_me_request, 0, sizeof(si_me_request));
280  si_me_request.sin_family = AF_INET;
281  si_me_request.sin_port = htons(table_port_);
282  si_me_request.sin_addr.s_addr = htonl(INADDR_ANY);
283  if (bind(table_socket, (struct sockaddr *)&si_me_request, sizeof(si_me_request)) == -1)
284  {
285  TLOG(TLVL_ERROR) << "table_receiver(): Cannot bind request socket to port " << table_port_ ;
286  exit(1);
287  }
288 
289  struct ip_mreq mreq;
290  long int sts = ResolveHost(multicast_address_.c_str(), mreq.imr_multiaddr);
291  if(sts == -1)
292  {
293  TLOG(TLVL_ERROR) << "table_receiver(): Unable to resolve multicast hostname" ;
294  exit(1);
295  }
296  mreq.imr_interface.s_addr = htonl(INADDR_ANY);
297  if (setsockopt(table_socket, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)) < 0)
298  {
299  TLOG(TLVL_ERROR) << "table_receiver(): Unable to join multicast group" ;
300  exit(1);
301  }
302 
303  struct epoll_event ev;
304  int table_epoll_fd = epoll_create1(0);
305  ev.events = EPOLLIN | EPOLLPRI;
306  ev.data.fd = table_socket;
307  if (epoll_ctl(table_epoll_fd, EPOLL_CTL_ADD, table_socket, &ev) == -1)
308  {
309  TLOG(TLVL_ERROR) << "table_receiver(): Could not register listen socket to epoll fd" ;
310  exit(3);
311  }
312 
313  auto ack_socket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
314  struct sockaddr_in ack_addr;
315  sts = ResolveHost(routing_master_address_.c_str(), ack_port_, ack_addr);
316  if(sts == -1)
317  {
318  TLOG(TLVL_ERROR) << "table_receiver(): Unable to resolve routing master hostname" ;
319  exit(1);
320  }
321 
322  if (table_socket == -1 || table_epoll_fd == -1 || ack_socket == -1)
323  {
324  TLOG(TLVL_DEBUG) << "table_receiver(): One of the listen sockets was not opened successfully." ;
325  exit(4);
326  }
327  artdaq::Fragment::sequence_id_t max_sequence_id = token_count_;
328  artdaq::Fragment::sequence_id_t current_sequence_id = 0;
329  std::map<artdaq::Fragment::sequence_id_t, int> routing_table;
330  TLOG(TLVL_INFO) << "table_receiver(): Expecting " << std::to_string(max_sequence_id) << " as the last Sequence ID in this run" ;
331  while (current_sequence_id < max_sequence_id)
332  {
333  std::vector<epoll_event> table_events_(4);
334  TLOG(TLVL_DEBUG) << "table_receiver(): Waiting for event on table socket" ;
335  auto nfds = epoll_wait(table_epoll_fd, &table_events_[0], table_events_.size(), -1);
336  if (nfds == -1) {
337  perror("epoll_wait");
338  exit(EXIT_FAILURE);
339  }
340 
341  TLOG(TLVL_DEBUG) << "table_receiver(): Received " << nfds << " table update(s)" ;
342  for (auto n = 0; n < nfds; ++n) {
343  auto first = artdaq::Fragment::InvalidSequenceID;
344  auto last = artdaq::Fragment::InvalidSequenceID;
345  artdaq::detail::RoutingPacketHeader hdr;
346  recv(table_events_[n].data.fd, &hdr, sizeof(artdaq::detail::RoutingPacketHeader), 0);
347 
348  TLOG(TLVL_DEBUG) << "table_receiver(): Checking for valid header" ;
349  if (hdr.header == ROUTING_MAGIC) {
350  artdaq::detail::RoutingPacket buffer(hdr.nEntries);
351  TLOG(TLVL_DEBUG) << "table_receiver(): Receiving data buffer" ;
352  sts = recv(table_events_[n].data.fd, &buffer[0], sizeof(artdaq::detail::RoutingPacketEntry) * hdr.nEntries, 0);
353  assert(static_cast<size_t>(sts) == sizeof(artdaq::detail::RoutingPacketEntry) * hdr.nEntries);
354 
355  first = buffer[0].sequence_id;
356  last = buffer[buffer.size() - 1].sequence_id;
357 
358  for (auto entry : buffer)
359  {
360  if (routing_table.count(entry.sequence_id))
361  {
362  assert(routing_table[entry.sequence_id] == entry.destination_rank);
363  continue;
364  }
365  routing_table[entry.sequence_id] = entry.destination_rank;
366  TLOG(TLVL_DEBUG) << "table_receiver(): table_receiver " << std::to_string(my_rank) << ": received update: SeqID " << std::to_string(entry.sequence_id) << " -> Rank " << std::to_string(entry.destination_rank) ;
367  }
368 
369  artdaq::detail::RoutingAckPacket ack;
370  ack.rank = my_rank;
371  ack.first_sequence_id = first;
372  ack.last_sequence_id = last;
373 
374  TLOG(TLVL_DEBUG) << "table_receiver(): Sending RoutingAckPacket with first= " << std::to_string(first) << " and last= " << std::to_string(last) << " to " << routing_master_address_ << ", port " << ack_port_ ;
375  sendto(ack_socket, &ack, sizeof(artdaq::detail::RoutingAckPacket), 0, (struct sockaddr *)&ack_addr, sizeof(ack_addr));
376  current_sequence_id = last;
377  }
378  }
379  }
380 
381  TLOG(TLVL_INFO) << "table_receiver(): Waiting at MPI_Barrier" ;
382  MPI_Barrier(MPI_COMM_WORLD);
383  TLOG(TLVL_INFO) << "table_receiver(): Done with MPI_Barrier" ;
384 }
385 
387 {
388  TLOG(TLVL_DEBUG) << "routing_master: Init" ;
389  printHost("routing_master");
390 
391  app_name = "RoutingMaster";
392 
393  auto app = std::make_unique<artdaq::RoutingMasterApp>();
394 
395  app->initialize(pset_, 0, 0);
396  app->do_start(art::RunID(1), 0, 0);
397  TLOG(TLVL_INFO) << "routing_master: Waiting at MPI_Barrier" ;
398  MPI_Barrier(MPI_COMM_WORLD);
399  TLOG(TLVL_INFO) << "routing_master: Done with MPI_Barrier, calling RoutingMasterCore::stop" ;
400  app->do_stop(0, 0);
401  TLOG(TLVL_INFO) << "routing_master: Done with RoutingMasterCore::stop, calling shutdown" ;
402  app->do_shutdown(0);
403  TLOG(TLVL_INFO) << "routing_master: Done with RoutingMasterCore::shutdown" ;
404 }
405 
406 void RoutingMasterTest::printHost(const std::string& functionName) const
407 {
408  char* doPrint = getenv("PRINT_HOST");
409  if (doPrint == 0) { return; }
410  const int ARRSIZE = 80;
411  char hostname[ARRSIZE];
412  std::string hostString;
413  if (!gethostname(hostname, ARRSIZE))
414  {
415  hostString = hostname;
416  }
417  else
418  {
419  hostString = "unknown";
420  }
421  TLOG(TLVL_DEBUG) << "Running " << functionName
422  << " on host " << hostString
423  << " with rank " << my_rank << "."
424  ;
425 }
426 
427 void printUsage()
428 {
429  int myid = 0;
430  struct rusage usage;
431  getrusage(RUSAGE_SELF, &usage);
432  std::cout << myid << ":"
433  << " user=" << artdaq::TimeUtils::convertUnixTimeToSeconds(usage.ru_utime)
434  << " sys=" << artdaq::TimeUtils::convertUnixTimeToSeconds(usage.ru_stime)
435  << std::endl;
436 }
437 
438 int main(int argc, char* argv[])
439 {
440  artdaq::configureMessageFacility("routing_master", false);
441  int rc = 1;
442  try
443  {
444  RoutingMasterTest p(argc, argv);
445  std::cerr << "Started process " << my_rank << " of " << p.procs_ << ".\n";
446  p.go();
447  rc = 0;
448  }
449  catch (std::string& x)
450  {
451  std::cerr << "Exception (type string) caught in routing_master: "
452  << x
453  << '\n';
454  return 1;
455  }
456  catch (char const* m)
457  {
458  std::cerr << "Exception (type char const*) caught in routing_master: ";
459  if (m)
460  {
461  std::cerr << m;
462  }
463  else
464  {
465  std::cerr << "[the value was a null pointer, so no message is available]";
466  }
467  std::cerr << '\n';
468  }
469  return rc;
470 }
The RoutingMasterTest class runs the routing_master test.
void routing_master()
Load a RoutingMasterCore instance, receive tokens from the token generators, and send table updates t...
A wrapper for a MPI program. Similar to MPISentry.
Definition: MPIProg.hh:10
void go()
Start the test, using the role assigned.
RoutingMasterTest(int argc, char *argv[])
RoutingMasterTest Constructor.
void table_receiver()
Receive Routing Tables from the Routing Master and send acknowledgement packets back.
fhicl::ParameterSet getPset(int argc, char *argv[]) const
Parse the command line arguments and load a configuration FHiCL file.
void generate_tokens()
Generate tokens and send them to the Routing Master.