Dear all,
I'm trying to write a simulation code on midas. What I did is just modify the
frontend.c(pp) from experiment samples and made some parameters change on midas.h .
Because my simulation ask for about 4.5MB for each event, so I increase the
MAX_EVENT_SIZE and max_event_size accordingly.
in midas.h :
#define MAX_EVENT_SIZE 0xa00000 //0x400000 /**< maximum event size 4MB*/
#define BANKLIST_MAX 640 //64 /**< max # of banks in event */
#define DEFAULT_RPC_TIMEOUT 60000 //10000
#define WATCHDOG_INTERVAL 5000 //1000
#define DEFAULT_WATCHDOG_TIMEOUT 60000 /**< Watchdog */
in frontend.cpp :
BOOL frontend_call_loop = TRUE;
INT max_event_size = 5 * 1024 * 1024;
INT max_event_size_frag = 2* max_event_size;
INT event_buffer_size = 2 * max_event_size;
EQUIPMENT equipment[] = {
{"WFD_SIMU", /* equipment name */
{1, 0, /* event ID, trigger mask */
"SYSTEM", /* event buffer */
#ifdef USE_INT
EQ_INTERRUPT, /* equipment type */
#else
EQ_POLLED, /* equipment type */
#endif
LAM_SOURCE(0, 0xFFFFFF), /* event source crate 0, all stations */
"MIDAS", /* format */
TRUE, /* enabled */
RO_RUNNING, // | /* read only when running */
// RO_ODB, /* and update ODB */
5000, /* poll for 500ms */
0, /* stop run after this event limit */
0, /* number of sub events */
0, /* don't log history */
"", "", "",},
read_simu_event, /* readout routine */
},
......
}
INT frontend_loop()
{
/* if frontend_call_loop is true, this routine gets called when
the frontend is idle or once between every event */
ss_sleep(100);
return SUCCESS;
}
Compilation OK and running mlogger, odbedit, frontend is OK.
start the run -> no problem ( but there is a long waiting time in frontend if
starting the run. Before the run begins, frontend terminal popping up messages
frequently, say, every 10 seconds. When run starts, frontend terminal hang on
for a couple of minutes before popping up next bunch of messages.)
stop the run -> Problem -> rpc timeout
message from odbedit:
[qzpeng@phy2-dhcp140 simu]$ odbedit -s 10000000
12:54:27 [WFD Simu,INFO] Program WFD Simu on host phy2-dhcp140 started
12:54:37 [Logger,INFO] Program Logger on host phy2-dhcp140 started
[local:simu:S]/>start
Run number [1]: 7
Are the above parameters correct? ([y]/n/q):
Starting run #7
Run #7 started
[local:simu:R]/>stop
[midas.c:9231:rpc_client_call,ERROR] rpc timeout, routine = "rc_transition",
host = "phy2-dhcp140.bu.edu"
Error: Unknown error 504 from client 'WFD Simu' on host phy2-dhcp140.bu.edu
[local:simu:R]/>
runing message from frontend:
[qzpeng@phy2-dhcp140 simu]$ ./frontend
Frontend name : WFD Simu
Event buffer size : 10485760
System max event size : 10485760
User max event size : 5242880
User max frag. size : 10485760
# of events per buffer : 2
Connect to experiment...
OK
Init hardware...
...... |