| .\"Copyright 2008-2010 IBM Corp. |
| .TH SCI_Group_operate_ext 3 "Dec 4, 2009" "1.0.0" "SCI" |
| |
| .SH NAME |
| \fBSCI_Group_operate_ext\fP \- Create a new group from an existed group and a back end list |
| |
| .SH SYNTAX |
| .ft R |
| |
| .SH C Syntax |
| .nf |
| #include <sci.h> |
| int SCI_Group_operate(sci_group_t \fIgroup\fP, int \fInum_bes\fP, int *\fIbe_list\fP, sci_op_t \fIop\fP, sci_group_t *\fInewgroup\fP) |
| |
| .SH INPUT PARAMETERS |
| .ft R |
| .TP 1i |
| group |
| An existed group (IN). |
| .TP 1i |
| num_bes |
| Number of back ends in another group (IN). |
| .TP 1i |
| be_list |
| The back end id list of another group (IN). |
| .TP 1i |
| op |
| Indicates how to create the new group (IN). |
| .TP 1i |
| newgroup |
| The output new group (OUT). |
| |
| .SH DESCRIPTION |
| .ft R |
| This subroutine is used to create a new group from an existed group and a back end list, |
| \fIgroup\fP can be \fBSCI_GROUP_ALL\fP, and \fIop\fP can be \fBSCI_UNION\fP, |
| \fBSCI_INTERSECTION\fP and \fBSCI_DIFFERENCE\fP. The new \fInewgroup\fP can be |
| used for \fBSCI_Bcast\fP to specify destination receivers. |
| .sp |
| This is a blocking call. The caller can assume \fInewgroup\fP is ready to use upon the return |
| of the function. |
| .sp |
| For more information, please refer to SCI's online documents. |
| |
| .SH EXAMPLE |
| .ft R |
| .nf |
| { |
| int i, num_bes, *be_list; |
| sci_group_t group, newgroup; |
| ... |
| num_bes = 3; |
| be_list = (int *)malloc(sizeof(int)*num_bes); |
| for (i=0; i<num_bes; i++) { |
| be_list[i] = i; |
| } |
| SCI_Group_operate_ext(group, num_bes, be_list, SCI_UNION, &newgroup); |
| } |
| .fi |
| |
| .SH ERRORS |
| .ft R |
| All SCI routines return an error value. |
| .sp |
| .TP 1i |
| SCI_ERR_UNINTIALIZED |
| Uninitialized SCI execution environment |
| .TP 1i |
| SCI_ERR_INVALID_CALLER |
| Can only be called in the front end |
| .TP 1i |
| SCI_ERR_GROUP_NOTFOUND |
| The group to be freed does not exist |
| .TP 1i |
| SCI_ERR_BACKEND_NOTFOUND |
| The back end id list contains non-existed back end id |
| .TP 1i |
| SCI_ERR_INVALID_OPERATOR |
| Incorrect \fIop\fP specified |
| .TP 1i |
| SCI_ERR_GROUP_EMPTY |
| The new group is an empty group |
| .TP 1i |
| SCI_ERR_NO_MEM |
| Out of memory |
| |
| .SH SEE ALSO |
| .ft R |
| .nf |
| \fBSCI_Group_create\fP(3) |
| \fBSCI_Group_free\fP(3) |
| \fBSCI_Group_operate\fP(3) |
