int main(int argc, char **argv)
{
int i;
int num;
int rank, size;
/*#define STR_SZ (15)*/
#define STR_SZ (50)
int name_len = STR_SZ;
char name[STR_SZ] = "";
int desc_len = STR_SZ;
char desc[STR_SZ] = "";
int verb;
MPI_Datatype dtype;
int count;
int bind;
int scope;
int provided;
int initialize_mpi = 0;
MPI_T_cvar_handle handle;
MPI_T_enum enumtype;
provided = 0xdeadbeef;
MPI_T_init_thread(MPI_THREAD_SINGLE, &provided);
assert(provided != 0xdeadbeef);
if (initialize_mpi) {
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
}
num = 0xdeadbeef;
MPI_T_cvar_get_num(&num);
printf("get_num=%d\n", num);
assert(num != 0xdeadbeef);
for (i = 0; i < num; ++i) {
name_len = desc_len = STR_SZ;
MPI_T_cvar_get_info(i, name, &name_len, &verb, &dtype, &enumtype, desc, &desc_len, &bind, &scope);
printf("index=%d\n", i);
printf("--> name='%s' name_len=%d desc='%s' desc_len=%d\n", name, name_len, desc, desc_len);
printf("--> verb=%d dtype=%#x bind=%d scope=%d\n", verb, dtype, bind, scope);
MPI_T_cvar_handle_alloc(i, NULL, &handle, &count);
printf("--> handle allocated: handle=%p count=%d\n", handle, count);
if (dtype == MPI_INT) {
int val = 0xdeadbeef;
MPI_T_cvar_read(handle, &val);
printf("--> val=%d\n", val);
++val;
MPI_T_cvar_write(handle, &val);
val = 0xdeadbeef;
MPI_T_cvar_read(handle, &val);
printf("--> incremented val=%d\n", val);
}
else if (dtype == MPI_DOUBLE) {
double val = NAN;
MPI_T_cvar_read(handle, &val);
printf("--> val=%f\n", val);
val *= 2.0;
MPI_T_cvar_write(handle, &val);
val = NAN;
MPI_T_cvar_read(handle, &val);
printf("--> doubled val=%f\n", val);
}
else if (dtype == MPI_CHAR) {
char *str = malloc(count+1);
MPI_T_cvar_read(handle, str);
printf("--> str='%s'\n", str);
/* just write the string back unmodified for now */
MPI_T_cvar_write(handle, str);
MPI_T_cvar_read(handle, str);
printf("--> written-then-read str='%s'\n", str);
}
MPI_T_cvar_handle_free(&handle);
printf("\n");
}
if (initialize_mpi) {
MPI_Finalize();
}
MPI_T_finalize();
return 0;
}
void list_cvars()
{
int num,err,i,numvars;
char *name, *desc;
int bind,verbos,scope;
MPI_Datatype dt;
MPI_T_enum et;
int maxnamelen=strlen("Variable");
int maxdesclen=0;
int prtlen;
int namelen,desclen;
int v_int;
unsigned int v_uint;
unsigned long v_ulong;
unsigned long long v_ullong;
MPI_Count v_count;
char v_char[4097];
double v_double;
char value[257];
int value_sup;
MPI_T_cvar_handle handle=MPI_T_CVAR_HANDLE_NULL;
int count;
/* Get number of variables */
err=MPI_T_cvar_get_num(&num);
CHECKERR("CVARNUM",err);
printf("Found %i control variables\n",num);
/* Find string sizes */
numvars=0;
for (i=0; i<num; i++)
{
int namelen=0;
int desclen=0;
char fname[5];
char fdesc[5];
err=MPI_T_cvar_get_info(i,fname,&namelen,&verbos,&dt,&et,fdesc,&desclen,&bind,&scope);
if (namelen>maxnamelen) maxnamelen=namelen;
if (desclen>maxdesclen) maxdesclen=desclen;
if (verbos<=verbosity) numvars++;
}
printf("Found %i control variables with verbosity <= ",numvars);
print_verbosity_short(verbosity);
printf("\n\n");
/* Allocate string buffers */
name=(char*)malloc(sizeof(char)*maxnamelen);
CHECKERR("Malloc Name",name==NULL);
desc=(char*)malloc(sizeof(char)*maxdesclen);
CHECKERR("Malloc Desc",desc==NULL);
/* Print header */
prtlen=0;
if (!longlist)
{
print_filled("Variable",maxnamelen,' ');
printf(" ");
prtlen=maxnamelen+1;
printf("VRB ");
printf(" ");
prtlen+=5+1;
printf("Type ");
printf(" ");
prtlen+=6+1;
printf("Bind ");
printf(" ");
prtlen+=8+1;
printf("Scope ");
printf(" ");
prtlen+=8+1;
printf("Value");
printf("\n");
prtlen+=12;
print_filled("",prtlen,'-');printf("\n");
}
/* Loop and print */
for (i=0; i<num; i++)
{
namelen=maxnamelen;
desclen=maxdesclen;
err=MPI_T_cvar_get_info(i,name,&namelen,&verbos,&dt,&et,desc,&desclen,&bind,&scope);
if (MPI_T_ERR_INVALID_INDEX == err)
continue;
CHECKERR("CVARINFO",err);
value_sup=1;
if (bind==MPI_T_BIND_NO_OBJECT)
{
err=MPI_T_cvar_handle_alloc(i,NULL,&handle,&count);
CHECKERR("CVAR-ALLOC",err);
}
else if (bind==MPI_T_BIND_MPI_COMM)
{
MPI_Comm comm=MPI_COMM_WORLD;
err=MPI_T_cvar_handle_alloc(i,&comm,&handle,&count);
CHECKERR("CVAR-ALLOC",err);
}
else
{
value_sup=0;
sprintf(value,"unsupported");
}
if (value_sup)
{
if (count==1 || dt==MPI_CHAR)
{
if (dt==MPI_INT)
{
err=MPI_T_cvar_read(handle,&v_int);
CHECKERR("CVARREAD",err);
if (et==MPI_T_ENUM_NULL)
{
sprintf(value,"%i",v_int);
}
else
{
int i,etnum;
char etname[20];
int etlen=20;
int done=0;
int newval;
err=MPI_T_enum_get_info(et,&etnum,etname,&etlen);
for (i=0; i<etnum; i++)
{
etlen=12;
err=MPI_T_enum_get_item(et,i,&newval,etname,&etlen);
if (newval==v_int)
{
sprintf(value, "%s",etname);
done=1;
}
}
if (!done)
{
sprintf(value, "unknown");
}
}
}
else if (dt==MPI_UNSIGNED)
{
err=MPI_T_cvar_read(handle,&v_uint);
CHECKERR("CVARREAD",err);
sprintf(value,"%u",v_uint);
}
else if (dt==MPI_UNSIGNED_LONG)
{
err=MPI_T_cvar_read(handle,&v_ulong);
CHECKERR("CVARREAD",err);
sprintf(value,"%lu",v_ulong);
}
else if (dt==MPI_UNSIGNED_LONG_LONG)
{
err=MPI_T_cvar_read(handle,&v_ullong);
CHECKERR("CVARREAD",err);
sprintf(value,"%llu",v_ullong);
}
else if (dt==MPI_COUNT)
{
err=MPI_T_cvar_read(handle,&v_count);
CHECKERR("CVARREAD",err);
sprintf(value,"%lu",v_count);
}
else if (dt==MPI_CHAR)
{
err=MPI_T_cvar_read(handle,v_char);
CHECKERR("CVARREAD",err);
sprintf(value,"%s",v_char);
}
else if (dt==MPI_DOUBLE)
{
err=MPI_T_cvar_read(handle,&v_double);
CHECKERR("CVARREAD",err);
sprintf(value,"%d",v_double);
}
else
{
value_sup=0;
sprintf(value,"unsupported");
}
}
else
{
value_sup=0;
sprintf(value,"unsupported");
}
}
if (handle!=MPI_T_CVAR_HANDLE_NULL)
{
MPI_T_cvar_handle_free(&handle);
CHECKERR("CVAR-FREE",err);
}
if (verbos<=verbosity)
{
if (!longlist)
{
print_filled(name,maxnamelen,' ');
printf(" ");
print_verbosity_short(verbos);
printf(" ");
print_type(dt);
printf(" ");
print_bind(bind);
printf(" ");
print_scope(scope);
printf(" ");
printf("%s",value);
printf("\n");
}
else
{
print_filled("",SCREENLEN,'-');printf("\n");
printf("Name: %s (",name); print_verbosity(verbos);printf(")\n");
printf("Type: "); print_type(dt); printf("\n");
printf("Bind: "); print_bind(bind); printf("\n");
printf("Scope: ");print_scope(scope);printf("\n");
printf("Value: %s\n\n",value);
if (desc!=NULL)
printf("%s\n\n",desc);
}
}
}
if (numvars>0)
{
if (!longlist)
{
print_filled("",prtlen,'-');printf("\n");
}
else
{
print_filled("",SCREENLEN,'-');printf("\n");
}
}
/* free buffers */
free(name);
free(desc);
}