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./usr/share/doc/libstarpu-dev/manual/html/index.html
    
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82 ··<div·class="headertitle">82 ··<div·class="headertitle">
83 <div·class="title">Introduction·</div>··</div>83 <div·class="title">Introduction·</div>··</div>
84 </div><!--header-->84 </div><!--header-->
85 <div·class="contents">85 <div·class="contents">
86 <div·class="textblock"><p>·86 <div·class="textblock"><p>·
87 <h1><a·class="anchor"·id="Foreword"></a>Foreword</h1>87 <h1><a·class="anchor"·id="Foreword"></a>Foreword</h1>
88 ·This·manual·documents·the·usage·of·StarPU·version·1.2.6.88 ·This·manual·documents·the·usage·of·StarPU·version·1.2.6.
89 Its·contents·was·last·updated·on·24·September·2018.89 Its·contents·was·last·updated·on·26·September·2018.
90 ·<h1><a·class="anchor"·id="Motivation"></a>90 ·<h1><a·class="anchor"·id="Motivation"></a>
91 Motivation</h1>91 Motivation</h1>
92 <p>The·use·of·specialized·hardware·such·as·accelerators·or·coprocessors·offers·an·interesting·approach·to·overcome·the·physical·limits·encountered·by·processor·architects.·As·a·result,·many·machines·are·now·equipped·with·one·or·several·accelerators·(e.g.·a·GPU),·in·addition·to·the·usual·processor(s).·While·a·lot·of·efforts·have·been·devoted·to·offload·computation·onto·such·accelerators,·very·little·attention·as·been·paid·to·portability·concerns·on·the·one·hand,·and·to·the·possibility·of·having·heterogeneous·accelerators·and·processors·to·interact·on·the·other·hand.</p>92 <p>The·use·of·specialized·hardware·such·as·accelerators·or·coprocessors·offers·an·interesting·approach·to·overcome·the·physical·limits·encountered·by·processor·architects.·As·a·result,·many·machines·are·now·equipped·with·one·or·several·accelerators·(e.g.·a·GPU),·in·addition·to·the·usual·processor(s).·While·a·lot·of·efforts·have·been·devoted·to·offload·computation·onto·such·accelerators,·very·little·attention·as·been·paid·to·portability·concerns·on·the·one·hand,·and·to·the·possibility·of·having·heterogeneous·accelerators·and·processors·to·interact·on·the·other·hand.</p>
93 <p>StarPU·is·a·runtime·system·that·offers·support·for·heterogeneous·multicore·architectures,·it·not·only·offers·a·unified·view·of·the·computational·resources·(i.e.·CPUs·and·accelerators·at·the·same·time),·but·it·also·takes·care·of·efficiently·mapping·and·executing·tasks·onto·an·heterogeneous·machine·while·transparently·handling·low-level·issues·such·as·data·transfers·in·a·portable·fashion.</p>93 <p>StarPU·is·a·runtime·system·that·offers·support·for·heterogeneous·multicore·architectures,·it·not·only·offers·a·unified·view·of·the·computational·resources·(i.e.·CPUs·and·accelerators·at·the·same·time),·but·it·also·takes·care·of·efficiently·mapping·and·executing·tasks·onto·an·heterogeneous·machine·while·transparently·handling·low-level·issues·such·as·data·transfers·in·a·portable·fashion.</p>
94 <h1><a·class="anchor"·id="StarPUInANutshell"></a>94 <h1><a·class="anchor"·id="StarPUInANutshell"></a>
95 StarPU·in·a·Nutshell</h1>95 StarPU·in·a·Nutshell</h1>
96 <p>StarPU·is·a·software·tool·aiming·to·allow·programmers·to·exploit·the·computing·power·of·the·available·CPUs·and·GPUs,·while·relieving·them·from·the·need·to·specially·adapt·their·programs·to·the·target·machine·and·processing·units.</p>96 <p>StarPU·is·a·software·tool·aiming·to·allow·programmers·to·exploit·the·computing·power·of·the·available·CPUs·and·GPUs,·while·relieving·them·from·the·need·to·specially·adapt·their·programs·to·the·target·machine·and·processing·units.</p>