IBV_MODIFY_SRQ(3) Libibverbs Programmer's Manual IBV_MODIFY_SRQ(3)NAME
ibv_modify_srq - modify attributes of a shared receive queue (SRQ)
SYNOPSIS
#include <infiniband/verbs.h>
int ibv_modify_srq(struct ibv_srq *srq,
struct ibv_srq_attr *srq_attr,
int srq_attr_mask);
DESCRIPTION
ibv_modify_srq() modifies the attributes of SRQ srq with the attributes in srq_attr according to the mask srq_attr_mask. The argument
srq_attr is an ibv_srq_attr struct, as defined in <infiniband/verbs.h>.
struct ibv_srq_attr {
uint32_t max_wr; /* maximum number of outstanding work requests (WRs) in the SRQ */
uint32_t max_sge; /* number of scatter elements per WR (irrelevant for ibv_modify_srq) */
uint32_t srq_limit; /* the limit value of the SRQ */
};
The argument srq_attr_mask specifies the SRQ attributes to be modified. The argument is either 0 or the bitwise OR of one or more of the
following flags:
IBV_SRQ_MAX_WR Resize the SRQ
IBV_SRQ_LIMIT Set the SRQ limit
RETURN VALUE
ibv_modify_srq() returns 0 on success, or the value of errno on failure (which indicates the failure reason).
NOTES
If any of the modify attributes is invalid, none of the attributes will be modified.
Not all devices support resizing SRQs. To check if a device supports it, check if the IBV_DEVICE_SRQ_RESIZE bit is set in the device capa-
bilities flags.
Modifying the srq_limit arms the SRQ to produce an IBV_EVENT_SRQ_LIMIT_REACHED "low watermark" asynchronous event once the number of WRs in
the SRQ drops below srq_limit.
SEE ALSO ibv_query_device(3), ibv_create_srq(3), ibv_destroy_srq(3), ibv_query_srq(3)AUTHORS
Dotan Barak <dotanba@gmail.com>
libibverbs 2006-10-31 IBV_MODIFY_SRQ(3)
Check Out this Related Man Page
IBV_CREATE_SRQ(3) Libibverbs Programmer's Manual IBV_CREATE_SRQ(3)NAME
ibv_create_srq, ibv_destroy_srq - create or destroy a shared receive queue (SRQ)
SYNOPSIS
#include <infiniband/verbs.h>
struct ibv_srq *ibv_create_srq(struct ibv_pd *pd, struct
ibv_srq_init_attr *srq_init_attr);
int ibv_destroy_srq(struct ibv_srq *srq);
DESCRIPTION
ibv_create_srq() creates a shared receive queue (SRQ) associated with the protection domain pd. The argument srq_init_attr is an
ibv_srq_init_attr struct, as defined in <infiniband/verbs.h>.
struct ibv_srq_init_attr {
void *srq_context; /* Associated context of the SRQ */
struct ibv_srq_attr attr; /* SRQ attributes */
};
struct ibv_srq_attr {
uint32_t max_wr; /* Requested max number of outstanding work requests (WRs) in the SRQ */
uint32_t max_sge; /* Requested max number of scatter elements per WR */
uint32_t srq_limit; /* The limit value of the SRQ (irrelevant for ibv_create_srq) */
};
The function ibv_create_srq() will update the srq_init_attr struct with the original values of the SRQ that was created; the values of
max_wr and max_sge will be greater than or equal to the values requested.
ibv_destroy_srq() destroys the SRQ srq.
RETURN VALUE
ibv_create_srq() returns a pointer to the created SRQ, or NULL if the request fails.
ibv_destroy_srq() returns 0 on success, or the value of errno on failure (which indicates the failure reason).
NOTES
ibv_destroy_srq() fails if any queue pair is still associated with this SRQ.
SEE ALSO ibv_alloc_pd(3), ibv_modify_srq(3), ibv_query_srq(3)AUTHORS
Dotan Barak <dotanba@gmail.com>
libibverbs 2006-10-31 IBV_CREATE_SRQ(3)
I have a huge matrix file containing some 1.5 million rows and 6000 columns. The matrix looks something like this:
1 2 3
4 5 6
7 8 9
3 4 5
I want to add all the numbers in the columns of this matrix and display the result to my stdout. This means that the numbers in the first column are:
... (2 Replies)
Hi,
Just trying to get to grips with sed and awk for some reporting for work and I need some assistance:
I have a file that lists policy names on the first line and then on the second line whether the policy is active or not.
Policy Name: Policy1
Active: yes
Policy... (8 Replies)
version info :
vi availabe with RHEL 5.4
I have a text file with 10,000 lines. I want to copy lines from 5000th line to 7000th and redirect to a file. Any idea how I can do this?
Note:
The above scenario is just an example. In my actual requirement, the file has 14 million lines and I want... (9 Replies)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
Hello,
I couldn't find an actual introduction thread, so I decided to just put this here.
I go by d0wngrade online. I have been programming in multiple languages for about 15+ years. I started with standard web design languages like HTML and CSS, but I then advanced from design to development... (2 Replies)
Hi guys...
The first active code line in AudioScope.sh is set -u .
This causes a complete exit if a variable is used/found but has not been allocated at the start of the program.
However, apart from writing code to do the task, is there a switch to to check which variables have been... (17 Replies)
Hi.
In thread https://www.unix.com/shell-programming-and-scripting/267833-grouping-counting.html rovf and I had a mini-discussion on grep and awk.
Here is a demo script that compares the awk and grep approaches for this single problem:
#!/usr/bin/env bash
# @(#) s2 Demonstrate group... (1 Reply)
Hello,
I have to fish out some specific columns from a file based on the header value. I have the list of columns I need in a different file. I thought I could read in the list of headers I need,
# file with header names of required columns in required order
headers_file=$2
# read contents... (11 Replies)
For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this:
If you don't have gcc on your system:
0. Download and install the Command Line Tools for Xcode package from Sign In - Apple *
1. Download the dash... (2 Replies)
Hello and thanks in advance for any help anyone can offer me
I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
I have data of an excel files as given below,
file1
org1_1 1 1 2.5 100
org1_2 1 2 5.5 98
org1_3 1 3 7.2 88
file2
org2_1 1 1 2.5 100
org2_2 1 2 5.5 56
org2_3 1 3 7.2 70
I have multiple excel files as above shown.
I have to copy column 1, column 4 and paste into a new excel file as... (26 Replies)
Dear All,
Taking a break from Vue.js coding for the site, SEO and YT videos; and hopefully addressing some well deserved criticism from some here that I have been too focused on the visual aspects of the forums versus the substance and the community....
While the "current generation... (9 Replies)
Hi all...
Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default.
Many tricky terminal escape codes are not catered for so I had to create workarounds.
One thing I searched for was this:
Passing perl variable to shell command
AND, @Neo this was... (15 Replies)