X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/df1574af1592689f73d940fd6803b55d5eca7156..f706837452870c96a5e4278c0b7d1b5f8bde99b0:/src/amok/Bandwidth/saturate.c diff --git a/src/amok/Bandwidth/saturate.c b/src/amok/Bandwidth/saturate.c index 4429bc4087..1f5e2d83de 100644 --- a/src/amok/Bandwidth/saturate.c +++ b/src/amok/Bandwidth/saturate.c @@ -10,14 +10,15 @@ #include "amok/Bandwidth/bandwidth_private.h" #include "gras/Msg/msg_private.h" /* FIXME: This mucks with contextes to answer RPC directly */ -XBT_LOG_EXTERNAL_CATEGORY(bw); -XBT_LOG_DEFAULT_CATEGORY(bw); +XBT_LOG_EXTERNAL_CATEGORY(amok_bw); +XBT_LOG_DEFAULT_CATEGORY(amok_bw); static int amok_bw_cb_sat_start(gras_msg_cb_ctx_t ctx, void *payload); static int amok_bw_cb_sat_begin(gras_msg_cb_ctx_t ctx, void *payload); void amok_bw_sat_init(void) { + gras_datadesc_type_t bw_res_desc=gras_datadesc_by_name("bw_res_t"); gras_datadesc_type_t sat_request_desc; /* Build the saturation datatype descriptions */ @@ -30,9 +31,8 @@ void amok_bw_sat_init(void) { /* Register the saturation messages */ gras_msgtype_declare_rpc("amok_bw_sat start", sat_request_desc, NULL); - gras_msgtype_declare_rpc("amok_bw_sat begin", sat_request_desc, NULL); - // gras_msgtype_declare_rpc("amok_bw_sat end", NULL, NULL); - gras_msgtype_declare_rpc("amok_bw_sat stop", NULL, NULL); + gras_msgtype_declare_rpc("amok_bw_sat begin", sat_request_desc, sat_request_desc); + gras_msgtype_declare_rpc("amok_bw_sat stop", NULL, bw_res_desc); } void amok_bw_sat_join(void) { @@ -55,21 +55,21 @@ void amok_bw_sat_leave(void) { /** * @brief Ask 'from_name:from_port' to stop saturating going to to_name:to_name. * - * @from_name: Name of the host we are asking to do a experiment with (to_name:to_port) - * @from_port: port on which the process we are asking for an experiment is listening + * @param from_name: Name of the host we are asking to do a experiment with (to_name:to_port) + * @param from_port: port on which the process we are asking for an experiment is listening * (for message, do not give a raw socket here. The needed raw socket will be negociated * between the peers) - * @to_name: Name of the host with which we should conduct the experiment - * @to_port: port on which the peer process is listening for message - * @msg_size: Size of each message sent. - * @duration: How long in maximum should be the saturation. + * @param to_name: Name of the host with which we should conduct the experiment + * @param to_port: port on which the peer process is listening for message + * @param msg_size: Size of each message sent. + * @param duration: How long in maximum should be the saturation. * * Ask the process 'from_name:from_port' to start to saturate the link between itself * and to_name:to_name. */ void amok_bw_saturate_start(const char* from_name,unsigned int from_port, const char* to_name,unsigned int to_port, - unsigned int msg_size, unsigned int duration) { + unsigned int msg_size, double duration) { gras_socket_t sock; sat_request_t request = xbt_new(s_sat_request_t,1); @@ -92,6 +92,13 @@ void amok_bw_saturate_start(const char* from_name,unsigned int from_port, /* Asked to begin a saturation */ static int amok_bw_cb_sat_start(gras_msg_cb_ctx_t ctx, void *payload){ sat_request_t request = *(sat_request_t*)payload; + gras_socket_t expeditor = gras_msg_cb_ctx_from(ctx); + + VERB4("Asked by %s:%d to start a saturation to %s:%d", + gras_socket_peer_name(expeditor),gras_socket_peer_port(expeditor), + request->host.name,request->host.port); + + gras_msg_rpcreturn(60,ctx, NULL); amok_bw_saturate_begin(request->host.name,request->host.port, request->msg_size, request->duration, NULL,NULL); @@ -105,16 +112,20 @@ static int amok_bw_cb_sat_start(gras_msg_cb_ctx_t ctx, void *payload){ * * Note that the only way to break this function before the end of the timeout * is to have a remote host calling amok_bw_saturate_stop to this process. + * + * If duration=0, the experiment will never timeout (you then have to manually + * stop it) */ void amok_bw_saturate_begin(const char* to_name,unsigned int to_port, - unsigned int msg_size, unsigned int duration, + unsigned int msg_size, double duration, /*out*/ double *elapsed_res, double *bw_res) { xbt_ex_t e; gras_socket_t peer_cmd = gras_socket_client(to_name, to_port); - gras_socket_t measMaster=NULL,meas=NULL; - int port; + gras_msg_cb_ctx_t ctx; + + gras_socket_t meas; s_gras_msg_t msg_got; @@ -130,40 +141,23 @@ void amok_bw_saturate_begin(const char* to_name,unsigned int to_port, DEBUG2("Begin to saturate to %s:%d",to_name,to_port); memset(&msg_got,0,sizeof(msg_got)); - for (port = 6000; port <= 10000 && measMaster == NULL; port++) { - TRY { - measMaster = gras_socket_server_ext(port, - 0 /*bufsize: auto*/, - 1 /*meas: true*/); - } CATCH(e) { - measMaster = NULL; - if (port < 10000) - xbt_ex_free(e); - else - RETHROW0("Error encountered while opening a measurement server socket: %s"); - } - } - request->msg_size = msg_size; request->duration = duration; request->host.name = NULL; - request->host.port = port; + request->host.port = 0; - gras_msg_cb_ctx_t ctx = gras_msg_rpc_async_call(peer_cmd, 60, - gras_msgtype_by_name("amok_bw_sat begin"), + ctx = gras_msg_rpc_async_call(peer_cmd, 60, + gras_msgtype_by_name("amok_bw_sat begin"), &request); - gras_socket_close(peer_cmd); - INFO1("Async called %d",port); - - TRY { - meas = gras_socket_meas_accept(measMaster); - DEBUG0("saturation handshake answered"); - } CATCH(e) { - gras_socket_close(measMaster); - RETHROW0("Error during saturation handshake: %s"); - } - INFO0("Accepted"); + free(request); gras_msg_rpc_async_wait(ctx,&request); + meas=gras_socket_client_ext( to_name, request->host.port, + 0 /*bufsize: auto*/, + 1 /*meas: true*/); + free(request); + + gras_socket_close(peer_cmd); + INFO2("Saturation from %s to %s started",gras_os_myname(),to_name); /* Start experiment */ start=gras_os_time(); @@ -190,8 +184,9 @@ void amok_bw_saturate_begin(const char* to_name,unsigned int to_port, /* Check whether the experiment has to be terminated by now */ elapsed=gras_os_time()-start; + VERB2("elapsed %f duration %f",elapsed, duration); - } while (saturate_further && elapsed < duration); + } while (duration==0 || (saturate_further && elapsed < duration)); bw = ((double)(packet_sent*msg_size)) / elapsed; @@ -200,16 +195,13 @@ void amok_bw_saturate_begin(const char* to_name,unsigned int to_port, if (bw_res) *bw_res = bw; - if (elapsed >= duration) { - INFO2("Saturation experiment terminated. Took %f sec (achieving %f kb/s)", - elapsed, bw/1024.0); - } - /* If someone stopped us, inform him about the achieved bandwidth */ if (msg_got.expe) { bw_res_t answer = xbt_new(s_bw_res_t,1); s_gras_msg_cb_ctx_t ctx; + INFO3("Saturation from %s to %s stopped by %s", + gras_os_myname(),to_name, gras_socket_peer_name(msg_got.expe)); answer->timestamp=gras_os_time(); answer->sec=elapsed; answer->bw=bw; @@ -220,321 +212,86 @@ void amok_bw_saturate_begin(const char* to_name,unsigned int to_port, gras_msg_rpcreturn(60,&ctx,&answer); free(answer); + } else { + INFO4("Saturation from %s to %s elapsed after %f sec (achieving %f kb/s)", + gras_os_myname(),to_name,elapsed,bw/1024.0); } - gras_socket_close(measMaster); gras_socket_close(meas); } /* Sender will saturate link to us */ static int amok_bw_cb_sat_begin(gras_msg_cb_ctx_t ctx, void *payload){ - gras_socket_t from=gras_msg_cb_ctx_from(ctx); sat_request_t request=*(sat_request_t*)payload; + sat_request_t answer=xbt_new0(s_sat_request_t,1); volatile int saturate_further = 1; xbt_ex_t e; + gras_socket_t measMaster=NULL,meas=NULL; + + int port=6000; + while (port <= 10000 && measMaster == NULL) { + TRY { + measMaster = gras_socket_server_ext(port, + 0 /*bufsize: auto*/, + 1 /*meas: true*/); + } CATCH(e) { + measMaster = NULL; + if (port < 10000) + xbt_ex_free(e); + else + RETHROW0("Error encountered while opening a measurement server socket: %s"); + } + if (measMaster == NULL) + port++; /* prepare for a new loop */ + } + answer->host.port=port; + + gras_msg_rpcreturn(60, ctx, &answer); + free(answer); gras_os_sleep(5); /* Wait for the accept */ - gras_socket_t sock=gras_socket_client_ext( gras_socket_peer_name(from), - request->host.port, - 0 /*bufsize: auto*/, - 1 /*meas: true*/); - gras_msg_rpcreturn(60, ctx, NULL); + + TRY { + meas = gras_socket_meas_accept(measMaster); + DEBUG0("saturation handshake answered"); + } CATCH(e) { + gras_socket_close(measMaster); + RETHROW0("Error during saturation handshake: %s"); + } while (saturate_further) { TRY { - gras_socket_meas_send(sock,120,request->msg_size,request->msg_size); + gras_socket_meas_recv(meas,120,request->msg_size,request->msg_size); } CATCH(e) { saturate_further = 0; xbt_ex_free(e); } } - gras_socket_close(sock); + INFO1("Saturation stopped on %s",gras_os_myname()); + gras_socket_close(meas); + if (gras_if_RL()) /* On SG, accepted=master */ + gras_socket_close(measMaster); free(request); return 1; } /** * @brief Ask 'from_name:from_port' to stop any saturation experiments - * @from_name: Name of the host we are asking to do a experiment with (to_name:to_port) - * @from_port: port on which the process we are asking for an experiment is listening - * @time: the duration of the experiment - * @bw: the achieved bandwidth + * @param from_name: Name of the host we are asking to do a experiment with (to_name:to_port) + * @param from_port: port on which the process we are asking for an experiment is listening + * @param time: the duration of the experiment + * @param bw: the achieved bandwidth * */ void amok_bw_saturate_stop(const char* from_name,unsigned int from_port, - /*out*/ unsigned int *time, unsigned int *bw) { + /*out*/ double *time, double *bw) { gras_socket_t sock = gras_socket_client(from_name,from_port); - gras_msg_rpccall(sock,60,gras_msgtype_by_name("amok_bw_sat stop"),NULL,NULL); + bw_res_t answer; + VERB2("Ask %s:%d to stop the saturation", + from_name,from_port); + gras_msg_rpccall(sock,60,gras_msgtype_by_name("amok_bw_sat stop"),NULL,&answer); gras_socket_close(sock); + if (time) *time=answer->sec; + if (bw) *bw =answer->bw; } - - -#if 0 -int grasbw_cbSatStart(gras_msg_t *msg) { - gras_rawsock_t *raw; - gras_sock_t *sock; - xbt_error_t errcode; - double start; /* time to timeout */ - - /* specification of the test to run */ - char* to_name=gras_msg_ctn(msg,0,0,msgHost_t).host; - unsigned int to_port=gras_msg_ctn(msg,0,0,msgHost_t).port; - - unsigned int msgSize=gras_msg_ctn(msg,1,0,SatExp_t).msgSize; - unsigned int timeout=gras_msg_ctn(msg,1,0,SatExp_t).timeout; - unsigned int raw_port; - - /* The request */ - SatExp_t *request; - /* answer */ - gras_msg_t *answer; - - - /* Negociate the saturation with the peer */ - if((errcode=gras_sock_client_open(to_name,to_port,&sock))) { - fprintf(stderr,"cbSatStart(): Error %s encountered while contacting peer\n", - xbt_error_name(errcode)); - grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1, - "cbSatStart: Severe error: Cannot send error status to requester!!\n", - errcode,"Cannot contact peer.\n"); - return 1; - } - if (!(request=(SatExp_t *)malloc(sizeof(SatExp_t)))) { - fprintf(stderr,"cbSatStart(): Malloc error\n"); - gras_sock_close(sock); - grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1, - "cbSatStart: Severe error: Cannot send error status to requester!!\n", - malloc_error,"Cannot build request.\n"); - return 1; - } - - request->timeout=gras_msg_ctn(msg,1,0,SatExp_t).timeout; - request->msgSize=gras_msg_ctn(msg,1,0,SatExp_t).msgSize; - - if ((errcode=gras_msg_new_and_send(sock,GRASMSG_SAT_BEGIN, 1, - request,1))) { - fprintf(stderr,"cbSatStart(): Error %s encountered while sending the request.\n", - xbt_error_name(errcode)); - grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1, - "cbSatStart: Severe error: Cannot send error status to requester!!\n", - errcode,"Cannot send request.\n"); - gras_sock_close(sock); - return 1; - } - - if ((errcode=gras_msg_wait(120,GRASMSG_SAT_BEGUN,&answer))) { - fprintf(stderr,"cbSatStart(): Error %s encountered while waiting for the ACK.\n", - xbt_error_name(errcode)); - gras_sock_close(sock); - - grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1, - "cbSatStart: Severe error: Cannot send error status to requester!!\n", - errcode, - "Cannot receive the ACK.\n"); - return 1; - } - - if((errcode=gras_msg_ctn(answer,0,0,msgError_t).errcode)) { - fprintf(stderr,"cbSatStart(): Peer reported error %s (%s).\n", - xbt_error_name(errcode),gras_msg_ctn(answer,0,0,msgError_t).errmsg); - - grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1, - "cbSatStart: Severe error: Cannot send error status to requester!!\n", - errcode, - "Peer repported '%s'.\n",gras_msg_ctn(answer,0,0,msgError_t).errmsg); - gras_msg_free(answer); - gras_sock_close(sock); - return 1; - } - - raw_port=gras_msg_ctn(answer,1,0,SatExp_t).port; - - if ((errcode=gras_rawsock_client_open(to_name,raw_port,msgSize,&raw))) { - fprintf(stderr,"cbSatStart(): Error %s while opening raw socket to %s:%d.\n", - xbt_error_name(errcode),to_name,gras_msg_ctn(answer,1,0,SatExp_t).port); - - grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1, - "cbSatStart: Severe error: Cannot send error status to requester!!\n", - errcode,"Cannot open raw socket.\n"); - gras_sock_close(sock); - return 1; - } - - /* send a train of data before repporting that XP is started */ - if ((errcode=gras_rawsock_send(raw,msgSize,msgSize))) { - fprintf(stderr,"cbSatStart: Failure %s during raw send\n",xbt_error_name(errcode)); - grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1, - "cbSatStart: Severe error: Cannot send error status to requester!!\n", - errcode,"Cannot raw send.\n"); - gras_sock_close(sock); - gras_rawsock_close(raw); - return 1; - } - - grasRepportError(msg->sock,GRASMSG_SAT_STARTED,1, - "cbSatStart: Severe error: Cannot send error status to requester!!\n", - no_error,"Saturation started"); - gras_msg_free(answer); - gras_msg_free(msg); - - /* Do the saturation until we get a SAT_STOP message or until we timeout the whole XP*/ - start=gras_time(); - while (gras_msg_wait(0,GRASMSG_SAT_STOP,&msg)==timeout_error && - gras_time()-start < timeout) { - if ((errcode=gras_rawsock_send(raw,msgSize,msgSize))) { - fprintf(stderr,"cbSatStart: Failure %s during raw send\n",xbt_error_name(errcode)); - /* our error message do not interess anyone. SAT_STOP will do nothing. */ - gras_sock_close(sock); - gras_rawsock_close(raw); - return 1; - } - } - if (gras_time()-start > timeout) { - fprintf(stderr,"The saturation experiment did timeout. Stop it NOW\n"); - gras_sock_close(sock); - gras_rawsock_close(raw); - return 1; - } - - /* Handle the SAT_STOP which broke the previous while */ - - if ((errcode=gras_msg_new_and_send(sock, GRASMSG_SAT_END,0))) { - fprintf(stderr,"cbSatStart(): Cannot tell peer to stop saturation\n"); - - grasRepportError(msg->sock,GRASMSG_SAT_STOPPED,1, - "cbSatStart: Severe error: Cannot send error status to requester!!\n", - errcode,"Sending SAT_END to peer failed.\n"); - gras_sock_close(sock); - gras_rawsock_close(raw); - return 1; - } - - if ((errcode=gras_msg_wait(60,GRASMSG_SAT_ENDED,&answer))) { - fprintf(stderr,"cbSatStart(): Peer didn't ACK the end\n"); - - grasRepportError(msg->sock,GRASMSG_SAT_STOPPED,1, - "cbSatStart: Severe error: Cannot send error status to requester!!\n", - errcode,"Receiving SAT_ENDED from peer failed.\n"); - gras_sock_close(sock); - gras_rawsock_close(raw); - return 1; - } - grasRepportError(msg->sock,GRASMSG_SAT_STOPPED,1, - "cbSatStart: Severe error: Cannot send error status to requester!!\n", - no_error,""); - - gras_sock_close(sock); - gras_rawsock_close(raw); - gras_msg_free(answer); - gras_msg_free(msg); - - return 1; -} - -int grasbw_cbSatBegin(gras_msg_t *msg) { - gras_rawsock_t *raw; - xbt_error_t errcode; - double start; /* timer */ - /* request */ - unsigned int msgSize=gras_msg_ctn(msg,0,0,SatExp_t).msgSize; - unsigned int timeout=gras_msg_ctn(msg,0,0,SatExp_t).timeout; - /* answer */ - SatExp_t *request; - msgError_t *error; - - if (!(request=(SatExp_t*)malloc(sizeof(SatExp_t))) || - !(error=(msgError_t *)malloc(sizeof(msgError_t)))) { - fprintf(stderr,"cbSatBegin(): Malloc error\n"); - grasRepportError(msg->sock,GRASMSG_SAT_BEGUN,2, - "cbSatBegin: Severe error: Cannot send error status to requester!!\n", - malloc_error,"Malloc error"); - return 1; - } - - if ((errcode=gras_rawsock_server_open(6666,8000,msgSize,&raw))) { - fprintf(stderr,"cbSatBegin(): Error %s encountered while opening a raw socket\n", - xbt_error_name(errcode)); - grasRepportError(msg->sock,GRASMSG_SAT_BEGUN,2, - "cbSatBegin: Severe error: Cannot send error status to requester!!\n", - errcode,"Cannot open raw socket"); - return 1; - } - request->port=gras_rawsock_get_peer_port(raw); - request->msgSize=msgSize; - error->errcode=no_error; - error->errmsg[0]='\0'; - if ((errcode=gras_msg_new_and_send(msg->sock,GRASMSG_SAT_BEGUN,2, - error,1, - request,1))) { - fprintf(stderr,"cbSatBegin(): Error %s encountered while send ACK to peer\n", - xbt_error_name(errcode)); - return 1; - } - gras_msg_free(msg); - - start=gras_time(); - while (gras_msg_wait(0,GRASMSG_SAT_END,&msg)==timeout_error && - gras_time() - start < timeout) { - errcode=gras_rawsock_recv(raw,msgSize,msgSize,1); - if (errcode != timeout_error && errcode != no_error) { - fprintf(stderr,"cbSatBegin: Failure %s during raw receive\n",xbt_error_name(errcode)); - /* our error message do not interess anyone. SAT_END will do nothing. */ - /* (if timeout'ed, it may be because the sender stopped emission. so survive it) */ - return 1; - } - } - if (gras_time()-start > timeout) { - fprintf(stderr,"The saturation experiment did timeout. Stop it NOW.\n"); - gras_rawsock_close(raw); - return 1; - } - - grasRepportError(msg->sock,GRASMSG_SAT_ENDED,1, - "cbSatBegin: Cannot send SAT_ENDED.\n", - no_error,""); - gras_rawsock_close(raw); - gras_msg_free(msg); - return 1; -} - -xbt_error_t grasbw_saturate_stop(const char* from_name,unsigned int from_port, - const char* to_name,unsigned int to_port) { - xbt_error_t errcode; - gras_sock_t *sock; - gras_msg_t *answer; - - if((errcode=gras_sock_client_open(from_name,from_port,&sock))) { - fprintf(stderr,"saturate_stop(): Error %s encountered while contacting peer\n", - xbt_error_name(errcode)); - return errcode; - } - - if ((errcode=gras_msg_new_and_send(sock,GRASMSG_SAT_STOP,0))) { - fprintf(stderr,"saturate_stop(): Error %s encountered while sending request\n", - xbt_error_name(errcode)); - gras_sock_close(sock); - return errcode; - } - - if ((errcode=gras_msg_wait(120,GRASMSG_SAT_STOPPED,&answer))) { - fprintf(stderr,"saturate_stop(): Error %s encountered while receiving ACK\n", - xbt_error_name(errcode)); - gras_sock_close(sock); - return errcode; - } - - if((errcode=gras_msg_ctn(answer,0,0,msgError_t).errcode)) { - fprintf(stderr,"saturate_stop(): Peer reported error %s (%s).\n", - xbt_error_name(errcode),gras_msg_ctn(answer,0,0,msgError_t).errmsg); - gras_msg_free(answer); - gras_sock_close(sock); - return errcode; - } - - gras_msg_free(answer); - gras_sock_close(sock); - - return no_error; -} -#endif