Skip to main content
  • Home
  • Development
  • Documentation
  • Donate
  • Operational login
  • Browse the archive

swh logo
SoftwareHeritage
Software
Heritage
Archive
Features
  • Search

  • Downloads

  • Save code now

  • Add forge now

  • Help

  • 2681e1d
  • /
  • src
  • /
  • innerprod.cc
Raw File Download

To reference or cite the objects present in the Software Heritage archive, permalinks based on SoftWare Hash IDentifiers (SWHIDs) must be used.
Select below a type of object currently browsed in order to display its associated SWHID and permalink.

  • content
  • directory
content badge Iframe embedding
swh:1:cnt:cd04fd7e55c8456c39eb38e5bb609a4cab289477
directory badge Iframe embedding
swh:1:dir:42c6c6e0c344c2b5e87c5df1eab2f142701d350b

This interface enables to generate software citations, provided that the root directory of browsed objects contains a citation.cff or codemeta.json file.
Select below a type of object currently browsed in order to generate citations for them.

  • content
  • directory
Generate software citation in BibTex format (requires biblatex-software package)
Generating citation ...
Generate software citation in BibTex format (requires biblatex-software package)
Generating citation ...
innerprod.cc
/*
 * ============================================================================
 *
 *        Authors:  Prashant Pandey <ppandey@cs.stonybrook.edu>
 *                  Rob Johnson <robj@vmware.com>   
 *                  Rob Patro (rob.patro@cs.stonybrook.edu)
 *
 * ============================================================================
 */

#include <iostream>
#include <cstring>
#include <vector>
#include <set>
#include <bitset>
#include <cassert>
#include <fstream>

#include <time.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/time.h>

#include "clipp.h"
#include "ProgOpts.h"
#include "gqf_cpp.h"

/*
 * ===  FUNCTION  ======================================================================
 *         Name:  main
 *  Description:  
 * =====================================================================================
 */
int inner_prod_main(InnerProdOpts& opts)
{
	uint64_t inner_prod;
	struct timeval start, end;
	struct timezone tzp;

	srand(time(NULL));
	spdlog::logger* console = opts.console.get();

	//Initialize the QF
	console->info("Mmaping Squeakr files from disk.");
	CQF<KeyObject> cfa(opts.squeakr_filea, FREAD);
	CQF<KeyObject> cfb(opts.squeakr_fileb, FREAD);

	if (cfa.seed() != cfb.seed()) {
		console->error("Input CQFs do not have the same seed.");
		return 1;
	}

	console->info("Performing inner product querries.");

	gettimeofday(&start, &tzp);
	inner_prod = cfa.inner_prod(cfb);
	gettimeofday(&end, &tzp);
	console->info("Inner product: {}", inner_prod);
	print_time_elapsed("", &start, &end, console);
	
	return EXIT_SUCCESS;
}				/* ----------  end of function main  ---------- */

back to top

Software Heritage — Copyright (C) 2015–2025, The Software Heritage developers. License: GNU AGPLv3+.
The source code of Software Heritage itself is available on our development forge.
The source code files archived by Software Heritage are available under their own copyright and licenses.
Terms of use: Archive access, API— Content policy— Contact— JavaScript license information— Web API