Make HostDeviceVector single gpu only (#4773)

* Make HostDeviceVector single gpu only
2019-08-25 14:51:13 -07:00
parent 41227d1933
commit 38ab79f889
54 changed files with 641 additions and 1621 deletions
--- a/tests/cpp/common/test_json.cc
+++ b/tests/cpp/common/test_json.cc
@@ -33,7 +33,7 @@ std::string GetModelStr() {
  },
  "configuration": {
    "booster": "gbtree",
-    "n_gpus": "1",
+    "gpu_id": "0",
    "num_class": "0",
    "num_feature": "10",
    "objective": "reg:linear",