jefflarkin’s gists

jefflarkin / nvtx.F90

Last active February 21, 2023 16:57

Simple Fortran bindings to a subset of the NVTX library.

	! Fortran bindings for a small subset of the NVIDIA Tools Extensions library
	module nvtx
	use iso_c_binding
	public :: nvtxrangepusha, nvtxrangepop
	public :: nvtxrangepushaargb
	interface
	! Annotate the timeline with a message
	! Parameters:
	! * string : the message in a string format
	subroutine nvtxrangepusha(string) bind(C, name="nvtxRangePushA")

jefflarkin / app.js

Created January 16, 2014 03:01

Error I'mm seeing from HAPI hello world example.

	var Hapi = require('hapi');
	var server = Hapi.createServer(process.env.IP,parseInt(process.env.PORT));

	// Define the route
	var hello = {
	handler: function (request) {
	request.reply({ greeting: 'hello world' });
	}
	};

jefflarkin / gist:8293839

Created January 7, 2014 02:36

Example of using Charlieplexing [http://en.wikipedia.org/wiki/Charlieplexing] to control 6 LEDs with an arduino.

	/ Charlieplexing 6 LEDs with Arduino Uno /
	/ Jeff Larkin [http://github.com/jefflarkin] /
	/*
	* Wiring Diagram:
	*
	* pin 2 ===== led0+, led1- ===== led4+, led5-
	* pin 4 ===== led1+, led0- ===== led2+, led3-
	* pin 6 ===== led3+, led2- ===== led5+, led4-
	*
	*/

jefflarkin / nvprof.sh

Last active January 30, 2017 01:32

This script allows for generating nvprof output files based on the hostname of a Cray XK7 compute node.

	#!/bin/bash
	# USAGE: Add between aprun options and executable
	# For Example: aprun -n 16 -N 1 ./foo arg1 arg2
	# Becomes: aprun -n 16 -N 1 ./nvprof.sh ./foo arg1 arg2

	# Give each node a separate file
	LOG=profile_$(hostname).nvp

	# Stripe each profile file by 1 to share the load on large runs
	lfs setstripe -c 1 $LOG

jefflarkin / cudaCheckError.c

Created April 15, 2013 20:18

A simple macro for checking errors after CUDA library calls.

	//Macro for checking cuda errors following a cuda launch or api call
	#define cudaCheckError() { \
	cudaError_t e=cudaGetLastError(); \
	if(e!=cudaSuccess) { \
	printf("Cuda failure %s:%d: '%s'\n",__FILE__,__LINE__,cudaGetErrorString(e)); \
	exit(0); \
	} \
	}

jefflarkin / cudaCheckError.c

Created April 15, 2013 20:18

A simple macro for checking errors after CUDA library calls.

	//Macro for checking cuda errors following a cuda launch or api call
	#define cudaCheckError() { \
	cudaError_t e=cudaGetLastError(); \
	if(e!=cudaSuccess) { \
	printf("Cuda failure %s:%d: '%s'\n",__FILE__,__LINE__,cudaGetErrorString(e)); \
	exit(0); \
	} \
	}

jefflarkin / profile.sh

Last active December 16, 2015 01:39

Quick trick for getting different cuda command-line profiler log files per node on a Cray XK7.

	#!/bin/bash
	# USAGE: Add between aprun options and executable
	# For Example: aprun -n 16 -N 1 ./foo arg1 arg2
	# Becomes: aprun -n 16 -N 1 ./profile.sh ./foo arg1 arg2

	# Enable command-line profiler
	export COMPUTE_PROFILE=1

	# Set output to CSV (optional)
	export COMPUTE_PROFILE_CSV=1

jefflarkin / 01-mm1_acc.F90

Created February 21, 2013 15:07

jefflarkin / 1test.F90

Created October 25, 2012 14:42

Testing Derived Types with OpenACC

jefflarkin / charactersheet.xml

Created September 21, 2011 01:14

LOTRO Data API Results

	<?xml version="1.0" encoding="UTF-8" ?>
	- <apiresponse>
	- <character name="Mathrid" world="Crickhollow" monster="0" race="Race of Man" race_id="23" class="Champion" class_id="172" level="30" origin="Dale" origin_id="16">
	- <vocation name="Woodsman" vocation_id="1879062814">
	- <professions>
	<profession name="Woodworker" profession_id="1879055941" proficiency="2" mastery="1" icon_profession="http://lorebook.lotro.com/icon.php?type=profession&id=1879055941" />
	<profession name="Farmer" profession_id="1879062816" proficiency="0" mastery="0" icon_profession="http://lorebook.lotro.com/icon.php?type=profession&id=1879062816" />
	<profession name="Forester" profession_id="1879062817" proficiency="2" mastery="2" icon_profession="http://lorebook.lotro.com/icon.php?type=profession&id=1879062817" />
	</professions>
	</vocation>

Jeff Larkin jefflarkin