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2.12.12-1

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Improve allreduce performance when we have more than one network interface per
GPU and we need to use PXN to close rings.
Add support for PCI Gen5 on 5.4 kernels.
Fix crash when setting NCCL_SET_THREAD_NAME.
Fix random crash in init due to uninitialized struct.
Fix hang on cubemesh topologies.
Add P2P_DIRECT_DISABLE parameter to disable direct access to pointers within a
process.
This commit is contained in:
Sylvain Jeaugey
2022-05-03 01:30:26 -07:00
parent 9bfc1c6e35
commit 7aa1c46fd5
12 changed files with 94 additions and 50 deletions
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src/graph/topo.cc
+1 -1
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@@ -371,7 +371,7 @@ ncclResult_t ncclTopoAddGpu(struct ncclXmlNode* xmlGpu, struct ncclTopoSystem* s
struct kvDict kvDictPciClass[] = { { "0x060400", PCI }, { "0x068000", NVS }, { "0x068001", CPU }, { "0x03", GPU }, { "0x02", NIC }, { NULL, PCI /* Default fallback value */ } };
struct kvDict kvDictPciGen[] = {
{ "2.5 GT/s", 15 }, { "5 GT/s", 30 }, { "8 GT/s", 60 }, { "16 GT/s", 120 }, /* Kernel 5.6 and earlier */
{ "2.5 GT/s", 15 }, { "5 GT/s", 30 }, { "8 GT/s", 60 }, { "16 GT/s", 120 }, { "32 GT/s", 240 }, /* Kernel 5.6 and earlier */
{ "2.5 GT/s PCIe", 15 }, { "5.0 GT/s PCIe", 30 }, { "8.0 GT/s PCIe", 60 }, { "16.0 GT/s PCIe", 120 }, { "32.0 GT/s PCIe", 240 }, { "64.0 GT/s PCIe", 480 },
{ NULL, 60 /* Default fallback */ } }; // x100 Mbps per lane
ncclResult_t ncclTopoAddPci(struct ncclXmlNode* xmlPci, struct ncclTopoSystem* system, struct ncclTopoNode* parent) {