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[libvirt] [PATCH 0/6] fix a serial of memleaks
by Zhang Bo 27 Apr '15

27 Apr '15

Zhang Bo (6): tests: fix some memleaks in tests util: fix memleak in virFindSCSIHostByPCI qemu: fix memleaks in qemuBuildCommandLine qemu: fix memleak in virCapabilitiesDomainDataLookup conf: fix memleak in virDomainNetIpParseXML conf: fix memleak in virDomainHostdevDefClear src/conf/capabilities.c | 5 +++-- src/conf/domain_conf.c | 18 ++++++++++-------- src/qemu/qemu_command.c | 2 ++ src/util/virutil.c | 3 +++ tests/commandtest.c | 1 + tests/domaincapstest.c | 1 + tests/qemucommandutiltest.c | 1 + 7 files changed, 21 insertions(+), 10 deletions(-) -- 1.7.12.4

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[libvirt] [PATCH] qemu: Fix comment for timeDelta
by Jiri Denemark 27 Apr '15

27 Apr '15

Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- Pushed as trivial. src/qemu/qemu_domain.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h index 76a4819..1d3c77a 100644 --- a/src/qemu/qemu_domain.h +++ b/src/qemu/qemu_domain.h @@ -107,7 +107,7 @@ struct _qemuDomainJobInfo { /* Computed values */ unsigned long long timeElapsed; unsigned long long timeRemaining; - long long timeDelta; /* delta = sent - received, i.e., the difference + long long timeDelta; /* delta = received - sent, i.e., the difference between the source and the destination time plus the time between the end of Perform phase on the source and the beginning of Finish phase on the -- 2.3.5

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[libvirt] [PATCH] migration: Usable time statistics without requiring NTP
by Jiri Denemark 27 Apr '15

27 Apr '15

virDomainGetJobStats is able to report statistics of a completed migration, however to get usable downtime and total time statistics both hosts have to keep synchronized time. To provide at least some estimation of the times even when NTP daemons are not running on both hosts we can just ignore the time needed to transfer a migration cookie to the destination host. The result will be also inaccurate but a bit more predictable. The total/down time will just be at least what we report. https://bugzilla.redhat.com/show_bug.cgi?id=1213434 Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- include/libvirt/libvirt-domain.h | 23 ++++++++++++++++++++++- src/qemu/qemu_domain.c | 15 +++++++++++++++ src/qemu/qemu_domain.h | 9 +++++++++ src/qemu/qemu_migration.c | 26 +++++++++++++------------- tools/virsh-domain.c | 16 ++++++++++++++++ 5 files changed, 75 insertions(+), 14 deletions(-) diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h index 8a4fe53..5c0a382 100644 --- a/include/libvirt/libvirt-domain.h +++ b/include/libvirt/libvirt-domain.h @@ -2548,6 +2548,16 @@ int virDomainAbortJob(virDomainPtr dom); # define VIR_DOMAIN_JOB_TIME_ELAPSED "time_elapsed" /** + * VIR_DOMAIN_JOB_TIME_ELAPSED_NET: + * + * virDomainGetJobStats field: time (ms) since the beginning of the + * migration job NOT including the time required to transfer control + * flow from the source host to the destination host, + * as VIR_TYPED_PARAM_ULLONG. + */ +# define VIR_DOMAIN_JOB_TIME_ELAPSED_NET "time_elapsed_net" + +/** * VIR_DOMAIN_JOB_TIME_REMAINING: * * virDomainGetJobStats field: remaining time (ms) for VIR_DOMAIN_JOB_BOUNDED @@ -2561,11 +2571,22 @@ int virDomainAbortJob(virDomainPtr dom); * VIR_DOMAIN_JOB_DOWNTIME: * * virDomainGetJobStats field: downtime (ms) that is expected to happen - * during migration, as VIR_TYPED_PARAM_ULLONG. + * during migration, as VIR_TYPED_PARAM_ULLONG. The real computed downtime + * between the time guest CPUs were paused and the time they were resumed + * is reported for completed migration. */ # define VIR_DOMAIN_JOB_DOWNTIME "downtime" /** + * VIR_DOMAIN_JOB_DOWNTIME_NET: + * + * virDomainGetJobStats field: real measured downtime (ms) NOT including + * the time required to transfer control flow from the source host to the + * destination host, as VIR_TYPED_PARAM_ULLONG. + */ +# define VIR_DOMAIN_JOB_DOWNTIME_NET "downtime_net" + +/** * VIR_DOMAIN_JOB_SETUP_TIME: * * virDomainGetJobStats field: total time in milliseconds spent preparing diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 1368386..ff223a0 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -288,6 +288,13 @@ qemuDomainJobInfoToParams(qemuDomainJobInfoPtr jobInfo, jobInfo->timeElapsed) < 0) goto error; + if (jobInfo->timeDelta && + jobInfo->timeElapsed > jobInfo->timeDelta && + virTypedParamsAddULLong(&par, &npar, &maxpar, + VIR_DOMAIN_JOB_TIME_ELAPSED_NET, + jobInfo->timeElapsed - jobInfo->timeDelta) < 0) + goto error; + if (jobInfo->type == VIR_DOMAIN_JOB_BOUNDED && virTypedParamsAddULLong(&par, &npar, &maxpar, VIR_DOMAIN_JOB_TIME_REMAINING, @@ -300,6 +307,14 @@ qemuDomainJobInfoToParams(qemuDomainJobInfoPtr jobInfo, status->downtime) < 0) goto error; + if (status->downtime_set && + jobInfo->timeDelta && + status->downtime > jobInfo->timeDelta && + virTypedParamsAddULLong(&par, &npar, &maxpar, + VIR_DOMAIN_JOB_DOWNTIME_NET, + status->downtime - jobInfo->timeDelta) < 0) + goto error; + if (status->setup_time_set && virTypedParamsAddULLong(&par, &npar, &maxpar, VIR_DOMAIN_JOB_SETUP_TIME, diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h index 6bea7c7..1b93f7d 100644 --- a/src/qemu/qemu_domain.h +++ b/src/qemu/qemu_domain.h @@ -100,9 +100,18 @@ struct _qemuDomainJobInfo { virDomainJobType type; unsigned long long started; /* When the async job started */ unsigned long long stopped; /* When the domain's CPUs were stopped */ + unsigned long long sent; /* When the source sent status info to the + destination (only for migrations). */ + unsigned long long received; /* When the destination host received status + info from the source (migrations only). */ /* Computed values */ unsigned long long timeElapsed; unsigned long long timeRemaining; + long long timeDelta; /* delta = sent - received, i.e., the difference + between the source and the destination time plus + the time between the end of Perform phase on the + source and the beginning of Finish phase on the + destination. */ /* Raw values from QEMU */ qemuMonitorMigrationStatus status; }; diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index 1da687c..4b3143f 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -688,6 +688,8 @@ qemuMigrationCookieStatisticsXMLFormat(virBufferPtr buf, virBufferAsprintf(buf, "<started>%llu</started>\n", jobInfo->started); virBufferAsprintf(buf, "<stopped>%llu</stopped>\n", jobInfo->stopped); + virBufferAsprintf(buf, "<sent>%llu</sent>\n", jobInfo->sent); + virBufferAsprintf(buf, "<delta>%lld</delta>\n", jobInfo->timeDelta); virBufferAsprintf(buf, "<%1$s>%2$llu</%1$s>\n", VIR_DOMAIN_JOB_TIME_ELAPSED, @@ -1046,11 +1048,14 @@ qemuMigrationCookieStatisticsXMLParse(xmlXPathContextPtr ctxt) virXPathULongLong("string(./started[1])", ctxt, &jobInfo->started); virXPathULongLong("string(./stopped[1])", ctxt, &jobInfo->stopped); + virXPathULongLong("string(./sent[1])", ctxt, &jobInfo->sent); + virXPathLongLong("string(./delta[1])", ctxt, &jobInfo->timeDelta); virXPathULongLong("string(./" VIR_DOMAIN_JOB_TIME_ELAPSED "[1])", ctxt, &jobInfo->timeElapsed); virXPathULongLong("string(./" VIR_DOMAIN_JOB_TIME_REMAINING "[1])", ctxt, &jobInfo->timeRemaining); + if (virXPathULongLong("string(./" VIR_DOMAIN_JOB_DOWNTIME "[1])", ctxt, &status->downtime) == 0) status->downtime_set = true; @@ -3438,18 +3443,9 @@ qemuMigrationConfirmPhase(virQEMUDriverPtr driver, /* Update total times with the values sent by the destination daemon */ if (mig->jobInfo) { qemuDomainObjPrivatePtr priv = vm->privateData; - if (priv->job.completed) { - qemuDomainJobInfoPtr jobInfo = priv->job.completed; - if (mig->jobInfo->status.downtime_set) { - jobInfo->status.downtime = mig->jobInfo->status.downtime; - jobInfo->status.downtime_set = true; - } - if (mig->jobInfo->timeElapsed) - jobInfo->timeElapsed = mig->jobInfo->timeElapsed; - } else { - priv->job.completed = mig->jobInfo; - mig->jobInfo = NULL; - } + VIR_FREE(priv->job.completed); + priv->job.completed = mig->jobInfo; + mig->jobInfo = NULL; } if (flags & VIR_MIGRATE_OFFLINE) @@ -4041,6 +4037,7 @@ qemuMigrationRun(virQEMUDriverPtr driver, if (priv->job.completed) { qemuDomainJobInfoUpdateTime(priv->job.completed); qemuDomainJobInfoUpdateDowntime(priv->job.completed); + ignore_value(virTimeMillisNow(&priv->job.completed->sent)); } if (priv->job.current->type == VIR_DOMAIN_JOB_UNBOUNDED) @@ -5164,8 +5161,11 @@ qemuMigrationFinish(virQEMUDriverPtr driver, } if (mig->jobInfo) { - priv->job.completed = mig->jobInfo; + qemuDomainJobInfoPtr jobInfo = mig->jobInfo; + priv->job.completed = jobInfo; mig->jobInfo = NULL; + if (jobInfo->sent && virTimeMillisNow(&jobInfo->received) == 0) + jobInfo->timeDelta = jobInfo->received - jobInfo->sent; } if (!(flags & VIR_MIGRATE_OFFLINE)) { diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c index 4f58f07..6e79c4d 100644 --- a/tools/virsh-domain.c +++ b/tools/virsh-domain.c @@ -5764,6 +5764,15 @@ cmdDomjobinfo(vshControl *ctl, const vshCmd *cmd) } vshPrint(ctl, "%-17s %-12llu ms\n", _("Time elapsed:"), info.timeElapsed); + if ((rc = virTypedParamsGetULLong(params, nparams, + VIR_DOMAIN_JOB_TIME_ELAPSED_NET, + &value)) < 0) { + goto save_error; + } else if (rc && value) { + vshPrint(ctl, "%-17s %-12llu ms\n", _("Time elapsed w/o network:"), + value); + } + if (info.type == VIR_DOMAIN_JOB_BOUNDED) vshPrint(ctl, "%-17s %-12llu ms\n", _("Time remaining:"), info.timeRemaining); @@ -5853,6 +5862,13 @@ cmdDomjobinfo(vshControl *ctl, const vshCmd *cmd) } if ((rc = virTypedParamsGetULLong(params, nparams, + VIR_DOMAIN_JOB_DOWNTIME_NET, + &value)) < 0) + goto save_error; + else if (rc) + vshPrint(ctl, "%-17s %-12llu ms\n", _("Downtime w/o network:"), value); + + if ((rc = virTypedParamsGetULLong(params, nparams, VIR_DOMAIN_JOB_SETUP_TIME, &value)) < 0) goto save_error; -- 2.3.5

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[libvirt] [PATCH] storage: Resolve Coverity UNINIT
by John Ferlan 27 Apr '15

27 Apr '15

commit id '1e13eff4' didn't init found when changed from a bool to an int in virStoragePoolFCRefreshThread and Coverity... Signed-off-by: John Ferlan <jferlan(a)redhat.com> --- src/storage/storage_backend_scsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/storage/storage_backend_scsi.c b/src/storage/storage_backend_scsi.c index f381ddb..e6c8bb5 100644 --- a/src/storage/storage_backend_scsi.c +++ b/src/storage/storage_backend_scsi.c @@ -581,7 +581,7 @@ virStoragePoolFCRefreshThread(void *opaque) const char *name = cbdata->name; virStoragePoolObjPtr pool = cbdata->pool; unsigned int host; - int found; + int found = 0; int tries = 2; do { -- 2.1.0

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[libvirt] [PATCH] typo: fix typo error in virLXCControllerSetupResourceLimits
by zhang bo 27 Apr '15

27 Apr '15

iff -> if rather then -> rather than Signed-off-by: YueWenyuan <yuewenyuan(a)huawei.com> --- src/lxc/lxc_controller.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c index e144c2d..7ad9d50 100644 --- a/src/lxc/lxc_controller.c +++ b/src/lxc/lxc_controller.c @@ -745,9 +745,9 @@ static int virLXCControllerSetupResourceLimits(virLXCControllerPtr ctrl) if (mode == VIR_DOMAIN_NUMATUNE_MEM_STRICT && virCgroupControllerAvailable(VIR_CGROUP_CONTROLLER_CPUSET)) { - /* Use virNuma* API iff necessary. Once set and child is exec()-ed, + /* Use virNuma* API if necessary. Once set and child is exec()-ed, * there's no way for us to change it. Rely on cgroups (if available - * and enabled in the config) rather then virNuma*. */ + * and enabled in the config) rather than virNuma*. */ VIR_DEBUG("Relying on CGroups for memory binding"); } else { -- 1.7.12.4

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[libvirt] [PATCH 0/5] qemu: Connect to guest agent after channel hotplug
by Peter Krempa 26 Apr '15

26 Apr '15

Clean up some parts of the agent code, fix a recently added bug and add support for guest agent hotplug, all this while removing more lines than adding. Peter Krempa (5): qemu: agent: Reuse virJSONValueObjectCreateVArgs in qemuAgentMakeCommand qemu: Fix domain object leak in qemuDomainInterfaceAddresses qemu: Reuse qemuDomainAgentAvailable in qemuDomainInterfaceAddresses qemu: agent: Differentiate errors when the agent channel was hotplugged qemu: Connect to guest agent after channel hotplug src/qemu/qemu_agent.c | 73 ++----------------------------------------------- src/qemu/qemu_domain.c | 45 +++++++++++++++++++++++++++--- src/qemu/qemu_domain.h | 2 ++ src/qemu/qemu_driver.c | 56 +++++++++++++++++++++---------------- src/qemu/qemu_process.c | 22 +-------------- src/qemu/qemu_process.h | 2 ++ 6 files changed, 81 insertions(+), 119 deletions(-) -- 2.3.5

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[libvirt] [PATCH] libxl: remove duplicate check for pci subsystem type
by Olaf Hering 24 Apr '15

24 Apr '15

Both attach and detach functions get called only if the type matches. Signed-off-by: Olaf Hering <olaf(a)aepfle.de> Cc: Jim Fehlig <jfehlig(a)suse.com> --- src/libxl/libxl_driver.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c index d76efda..f915f91 100644 --- a/src/libxl/libxl_driver.c +++ b/src/libxl/libxl_driver.c @@ -2901,9 +2901,6 @@ libxlDomainAttachHostPCIDevice(libxlDriverPrivatePtr driver, libxl_device_pci_init(&pcidev); - if (hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) - goto cleanup; - if (virDomainHostdevFind(vm->def, hostdev, &found) >= 0) { virReportError(VIR_ERR_OPERATION_FAILED, _("target pci device %.4x:%.2x:%.2x.%.1x already exists"), @@ -3239,9 +3236,6 @@ libxlDomainDetachHostPCIDevice(libxlDriverPrivatePtr driver, libxl_device_pci_init(&pcidev); - if (subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) - goto cleanup; - idx = virDomainHostdevFind(vm->def, hostdev, &detach); if (idx < 0) { virReportError(VIR_ERR_OPERATION_FAILED,

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[libvirt] [PATCH] libxl: use pci init and dispose functions
by Olaf Hering 24 Apr '15

24 Apr '15

Rearrange code so that the local variable is always initialized and disposed. Signed-off-by: Olaf Hering <olaf(a)aepfle.de> Cc: Jim Fehlig <jfehlig(a)suse.com> --- src/libxl/libxl_driver.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c index 393f8bd..d76efda 100644 --- a/src/libxl/libxl_driver.c +++ b/src/libxl/libxl_driver.c @@ -2893,12 +2893,14 @@ libxlDomainAttachHostPCIDevice(libxlDriverPrivatePtr driver, virDomainHostdevDefPtr hostdev) { libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver); - libxl_device_pci pcidev; + libxl_device_pci pcidev; virDomainHostdevDefPtr found; virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr; virDomainHostdevSubsysPCIPtr pcisrc = &hostdev->source.subsys.u.pci; int ret = -1; + libxl_device_pci_init(&pcidev); + if (hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) goto cleanup; @@ -2939,6 +2941,7 @@ libxlDomainAttachHostPCIDevice(libxlDriverPrivatePtr driver, cleanup: virObjectUnref(cfg); + libxl_device_pci_dispose(&pcidev); return ret; } @@ -3234,6 +3237,8 @@ libxlDomainDetachHostPCIDevice(libxlDriverPrivatePtr driver, virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr; int ret = -1; + libxl_device_pci_init(&pcidev); + if (subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) goto cleanup; @@ -3255,8 +3260,6 @@ libxlDomainDetachHostPCIDevice(libxlDriverPrivatePtr driver, } - libxl_device_pci_init(&pcidev); - if (libxlMakePCI(detach, &pcidev) < 0) goto error; @@ -3269,7 +3272,6 @@ libxlDomainDetachHostPCIDevice(libxlDriverPrivatePtr driver, goto error; } - libxl_device_pci_dispose(&pcidev); virDomainHostdevRemove(vm->def, idx); @@ -3283,6 +3285,7 @@ libxlDomainDetachHostPCIDevice(libxlDriverPrivatePtr driver, cleanup: virObjectUnref(cfg); + libxl_device_pci_dispose(&pcidev); return ret; }

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[libvirt] [PATCH] libxl: initialize sdl.opengl defbool in libxlMakeVfb
by Jim Fehlig 24 Apr '15

24 Apr '15

Commit bf32462b missed initializing sdl.opengl. Without the initialization, libvirtd will be terminated by an assert from libxl: Assertion `!libxl_defbool_is_default(db)' failed. Reported-by: Olaf Hering <olaf(a)aepfle.de> Signed-off-by: Jim Fehlig <jfehlig(a)suse.com> --- Perhaps bending the "trivial rule" a bit, but this patch is trivial and should have been included in bf32462b. I simply forgot to add initialization of sdl.opengl before pushing bf32462b. I'll push this fix shortly. src/libxl/libxl_conf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index 55bd21b..53f327b 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -1243,6 +1243,7 @@ libxlMakeVfb(virPortAllocatorPtr graphicsports, case VIR_DOMAIN_GRAPHICS_TYPE_SDL: libxl_defbool_set(&x_vfb->sdl.enable, 1); libxl_defbool_set(&x_vfb->vnc.enable, 0); + libxl_defbool_set(&x_vfb->sdl.opengl, 0); if (VIR_STRDUP(x_vfb->sdl.display, l_vfb->data.sdl.display) < 0) return -1; if (VIR_STRDUP(x_vfb->sdl.xauthority, l_vfb->data.sdl.xauth) < 0) -- 1.8.4.5

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[libvirt] CfP Virtualization in High-Performance Cloud Computing Workshop (VHPC '15)
by VHPC 15 24 Apr '15

24 Apr '15

================================================================= CALL FOR PAPERS 10th Workshop on Virtualization in High-Performance Cloud Computing (VHPC '15) held in conjunction with Euro-Par 2015, August 24-28, Vienna, Austria (Springer LNCS) ================================================================= Date: August 25, 2015 Workshop URL: http://vhpc.org Paper Submission Deadline: May 22, 2015 CALL FOR PAPERS Virtualization technologies constitute a key enabling factor for flexible resource management in modern data centers, cloud environments, and increasingly in HPC as well. Providers need to dynamically manage complex infrastructures in a seamless fashion for varying workloads and hosted applications, independently of the customers deploying software or users submitting highly dynamic and heterogeneous workloads. Thanks to virtualization, we have the ability to manage vast computing and networking resources dynamically and close to the marginal cost of providing the services, which is unprecedented in the history of scientific and commercial computing. Docker et al. OS-level virtualization, with its capability to isolate multiple user-space environments allows for their co-existence within the same OS kernel. It promises to provide many of the advantages of machine virtualization with high levels of responsiveness and performance; coupled with lightweight OSs it forms a potent architecture with promise to become a mainstream environment for HPC workloads. Machine virtualization, with its capability to enable consolidation of multiple under-utilized servers with heterogeneous software and operating systems (OSes), and its capability to live-migrate a fully operating virtual machine (VM) with a very short downtime, enables novel and dynamic ways to manage physical servers; I/O Virtualization allows physical network adapters to take traffic from multiple VMs; network virtualization, with its capability to create logical network overlays that are independent of the underlying physical topology and IP addressing, provides the fundamental ground on top of which evolved network services can be realized with an unprecedented level of dynamicity and flexibility; These technologies have to be inter-mixed and integrated in an intelligent way, to support workloads that are increasingly demanding in terms of absolute performance, responsiveness and interactivity, and have to respect well-specified Service- Level Agreements (SLAs), as needed for industrial-grade provided services. The Workshop on Virtualization in High-Performance Cloud Computing (VHPC) aims to bring together researchers and industrial practitioners facing the challenges posed by virtualization in order to foster discussion, collaboration, mutual exchange of knowledge and experience, enabling research to ultimately provide novel solutions for virtualized computing systems of tomorrow. The workshop will be one day in length, composed of 20 min paper presentations, each followed by 10 min discussion sections, and lightning talks, limited to 5 minutes. Presentations may be accompanied by interactive demonstrations. TOPICS Topics of interest include, but are not limited to: - Virtualization in supercomputing environments, HPC clusters, cloud HPC and grids - OS-level virtualization including container runtimes (Docker, rkt et al.) - Lightweight compute node operating systems/VMMs - Optimizations of virtual machine monitor platforms, hypervisors and - Hypervisor and network virtualization QoS and SLAs - Cloud based network and system management for SDN and NFV - Management, deployment and monitoring of virtualized environments - Performance measurement, modelling and monitoring of virtualized/cloud workloads - Programming models for virtualized environments - Cloud reliability, fault-tolerance, high-availability and security - Heterogeneous virtualized environments, virtualized accelerators, GPUs and co-processors - Optimized communication libraries/protocols in the cloud and for HPC in the cloud - Topology management and optimization for distributed virtualized applications - Cluster provisioning in the cloud and cloud bursting - Adaptation of emerging HPC technologies (high performance networks, RDMA, etc..) - I/O and storage virtualization, virtualization aware file systems - Job scheduling/control/policy in virtualized environments - Checkpointing and migration of VM-based large compute jobs - Cloud frameworks and APIs - Energy-efficient / power-aware virtualization Important Dates April 29, 2015 - Abstract registration May 22, 2015 - Full paper submission June 19, 2015 - Acceptance notification October 2, 2015 - Camera-ready version due August 25, 2015 - Workshop Date TPC CHAIR Michael Alexander (chair), TU Wien, Austria Anastassios Nanos (co-chair), NTUA, Greece Balazs Gerofi (co-chair), RIKEN Advanced Institute for Computational Science, Japan PROGRAM COMMITTEE Stergios Anastasiadis, University of Ioannina, Greece Costas Bekas, IBM Zurich Research Laboratory, Switzerland Jakob Blomer, CERN Ron Brightwell, Sandia National Laboratories, USA Roberto Canonico, University of Napoli Federico II, Italy Julian Chesterfield, OnApp, UK Patrick Dreher, MIT, USA William Gardner, University of Guelph, Canada Kyle Hale, Northwestern University, USA Marcus Hardt, Karlsruhe Institute of Technology, Germany Iftekhar Hussain, Infinera, USA Krishna Kant, Temple University, USA Eiji Kawai, National Institute of Information and Communications Technology, Japan Romeo Kinzler, IBM, Switzerland Kornilios Kourtis, ETH, Switzerland Nectarios Koziris, National Technical University of Athens, Greece Massimo Lamanna, CERN Che-Rung Roger Lee, National Tsing Hua University, Taiwan William Magato, University of Cincinnati, USA Helge Meinhard, CERN Jean-Marc Menaud, Ecole des Mines de Nantes France Christine Morin, INRIA, France Amer Qouneh, University of Florida, USA Seetharami Seelam, IBM Watson Research Center, USA Josh Simons, VMWare, USA Borja Sotomayor, University of Chicago, USA Kurt Tutschku, Blekinge Institute of Technology, Sweden Yasuhiro Watashiba, Osaka University, Japan Chao-Tung Yang, Tunghai University, Taiwan PAPER SUBMISSION-PUBLICATION Papers submitted to the workshop will be reviewed by at least two members of the program committee and external reviewers. Submissions should include abstract, key words, the e-mail address of the corresponding author, and must not exceed 10 pages, including tables and figures at a main font size no smaller than 11 point. Submission of a paper should be regarded as a commitment that, should the paper be accepted, at least one of the authors will register and attend the conference to present the work. Accepted papers will be published in the Springer LNCS series - the format must be according to the Springer LNCS Style. Initial submissions are in PDF; authors of accepted papers will be requested to provide source files. Format Guidelines: http://www.springer.de/comp/lncs/authors.html Submission Link: https://easychair.org/conferences/?conf=europar2015ws GENERAL INFORMATION The workshop is one day in length and will be held in conjunction with Euro-Par 2015, 24-28 August, Vienna, Austria

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