feat(gpu-service): support sliced (by-ratio) GPU instances and PV status

- Add whole/by-ratio segmented toggle to the GPU Instance form; sliced
  mode picks a VRAM ratio (10-100 or finer 1-10 when max<10), scales
  CPU/RAM by the ratio (floored, min 1), pins compute at 100%
- Availability, card Max, and Instance Type cell reflect sliceable types
- Add ready/deleting status columns for storage and storage types

.claude/skills/form-patterns/SKILL.md

@@ -97,6 +97,38 @@ const handleBChange = (b) => {
 };
 ```
 
+## 4. Controlled input with derived fields
+
+When a controlled field's value comes from **both** user input and a programmatic default (e.g. a percentage picked on a slider, and a default seeded on select / mode-switch), funnel both through **one commit function** — don't duplicate "write field + recompute derived" per call site.
+
+- The `Form.Item`-bound input's `onChange(value)` forwards the value to the commit fn (the field is antd-bound, but pass the value explicitly so the default path can reuse the same fn instead of reading the store).
+- Seed defaults by calling the **same** commit fn with the computed value.
+- Separate the **commit action** (write field + recompute dependents) from the **render-derive** (read the field → recompute dependents). Keeping the derive standalone lets it re-run on reload/edit where there's no user event.
+
+```ts
+// commit action — slider onChange AND default both call this
+const commitRatio = (value: number) => {
+  form.setFieldsValue({ spec: { resources: { ratio: value, cores: 100 } } });
+  rescaleDerived(); // reads ratio from the form, sets the disabled cpu/ram
+};
+
+// render-derive — also called from the edit/reload effect
+const rescaleDerived = () => {
+  const ratio = form.getFieldValue(['spec', 'resources', 'ratio']);
+  form.setFieldsValue({
+    spec: {
+      resources: {
+        cpu: floorScale(unit.cpu, ratio),
+        ram: floorScale(unit.ram, ratio)
+      }
+    }
+  });
+};
+
+// default seeding reuses the commit fn — one path, not a second copy
+const applyDefaults = (item) => commitRatio(Math.min(10, item.maxRatio) || 10);
+```
+
 ## Related
 
 - Module/file structure for forms lives in the **create-crud-page** skill (section 3).

src/locales/en-US/gpuservice.ts

@@ -119,8 +119,17 @@ export default {
     'No available GPU resources, please choose another instance type.',
   'gpuservice.instance.gpuCount.zero':
     'CPU-only setup for environment preparation.',
+  'gpuservice.instance.mode.whole': 'Full GPU',
+  'gpuservice.instance.mode.sliced': 'By Ratio',
+  'gpuservice.instance.slice.memoryPercentage': 'VRAM Percentage (%)',
+  'gpuservice.instance.slice.fullCores': '100% Compute',
+  'gpuservice.instance.slice.percentage.required':
+    'Please select or enter a percentage',
+  'gpuservice.instance.slice.percentage.max':
+    'The ratio must be between 1% and {count}%',
   'gpuservice.instance.stock': 'Stock',
   'gpuservice.instance.sliced': 'Sliced',
+  'gpuservice.instance.sliceable': 'Sliceable',
   'gpuservice.instance.memory': 'VRAM',
   'gpuservice.instance.ram': 'RAM',
   'gpuservice.instance.os': 'OS',

src/locales/ja-JP/gpuservice.ts

@@ -118,8 +118,17 @@ export default {
   'gpuservice.instance.gpuCount.noAvailable':
     '利用可能な GPU リソースがありません。別のインスタンスタイプを選択してください。',
   'gpuservice.instance.gpuCount.zero': 'CPU のみを使用し、環境準備用です。',
+  'gpuservice.instance.mode.whole': 'GPU 全体',
+  'gpuservice.instance.mode.sliced': '比率で',
+  'gpuservice.instance.slice.memoryPercentage': 'VRAM の割合（%）',
+  'gpuservice.instance.slice.fullCores': '100% コンピュート',
+  'gpuservice.instance.slice.percentage.required':
+    'パーセンテージを選択または入力してください',
+  'gpuservice.instance.slice.percentage.max':
+    '比率は 1% から {count}% の間で指定してください',
   'gpuservice.instance.stock': '在庫',
   'gpuservice.instance.sliced': '分割',
+  'gpuservice.instance.sliceable': '分割可能',
   'gpuservice.instance.memory': 'VRAM',
   'gpuservice.instance.ram': 'RAM',
   'gpuservice.instance.os': 'OS',

src/locales/ru-RU/gpuservice.ts

@@ -117,8 +117,17 @@ export default {
   'gpuservice.instance.gpuCount.noAvailable':
     'Нет доступных ресурсов GPU, выберите другой тип экземпляра.',
   'gpuservice.instance.gpuCount.zero': 'Только CPU, для подготовки окружения.',
+  'gpuservice.instance.mode.whole': 'Весь GPU',
+  'gpuservice.instance.mode.sliced': 'По доле',
+  'gpuservice.instance.slice.memoryPercentage': 'Доля VRAM (%)',
+  'gpuservice.instance.slice.fullCores': '100% вычислений',
+  'gpuservice.instance.slice.percentage.required':
+    'Выберите или введите процент',
+  'gpuservice.instance.slice.percentage.max':
+    'Доля должна быть от 1% до {count}%',
   'gpuservice.instance.stock': 'Остаток',
   'gpuservice.instance.sliced': 'Разделено',
+  'gpuservice.instance.sliceable': 'Делимый',
   'gpuservice.instance.memory': 'VRAM',
   'gpuservice.instance.ram': 'RAM',
   'gpuservice.instance.os': 'ОС',

src/locales/tr-TR/gpuservice.ts

@@ -113,8 +113,17 @@ export default {
   'gpuservice.instance.gpuCount.noAvailable':
     'Kullanılabilir GPU kaynağı yok, lütfen başka bir örnek türü seçin.',
   'gpuservice.instance.gpuCount.zero': 'Yalnızca CPU, ortam hazırlığı için.',
+  'gpuservice.instance.mode.whole': 'Tam GPU',
+  'gpuservice.instance.mode.sliced': 'Orana Göre',
+  'gpuservice.instance.slice.memoryPercentage': 'VRAM Yüzdesi (%)',
+  'gpuservice.instance.slice.fullCores': '%100 İşlem Gücü',
+  'gpuservice.instance.slice.percentage.required':
+    'Lütfen bir yüzde seçin veya girin',
+  'gpuservice.instance.slice.percentage.max':
+    'Oran %1 ile %{count} arasında olmalıdır',
   'gpuservice.instance.stock': 'Stok',
   'gpuservice.instance.sliced': 'Bölünmüş',
+  'gpuservice.instance.sliceable': 'Bölünebilir',
   'gpuservice.instance.memory': 'VRAM',
   'gpuservice.instance.ram': 'RAM',
   'gpuservice.instance.os': 'OS',

src/locales/zh-CN/gpuservice.ts

@@ -108,8 +108,15 @@ export default {
   'gpuservice.instance.gpuCount.noAvailable':
     '没有可用的 GPU 资源，请选择其他实例类型。',
   'gpuservice.instance.gpuCount.zero': '仅使用 CPU，用于环境准备。',
+  'gpuservice.instance.mode.whole': '整卡',
+  'gpuservice.instance.mode.sliced': '按比例',
+  'gpuservice.instance.slice.memoryPercentage': '显存占比（%）',
+  'gpuservice.instance.slice.fullCores': '100% 算力',
+  'gpuservice.instance.slice.percentage.required': '请选择或输入百分比',
+  'gpuservice.instance.slice.percentage.max': '比例需在 1% 到 {count}% 之间',
   'gpuservice.instance.stock': '库存',
   'gpuservice.instance.sliced': '切分',
+  'gpuservice.instance.sliceable': '可切分',
   'gpuservice.instance.memory': '显存',
   'gpuservice.instance.ram': '内存',
   'gpuservice.instance.os': '系统',

src/pages/_components/number-selection/index.tsx

@@ -23,6 +23,11 @@ interface NumberSelectionProps {
   labelExtra?: React.ReactNode;
   maxCount?: number;
   tips?: string;
+  // Explicit preset tick values (e.g. [10,20,...,100] for percentage slicing).
+  // Overrides the default 1..maxCount sequence.
+  presetValues?: number[];
+  // Force the free-input box to show regardless of max/maxCount.
+  alwaysShowInput?: boolean;
   onChange?: (value: number) => void;
 }
 
@@ -39,17 +44,18 @@ const NumberSelection: React.FC<NumberSelectionProps> = ({
   className,
   maxCount = 8,
   tips,
+  presetValues,
+  alwaysShowInput,
   style,
   onChange
 }) => {
   const intl = useIntl();
 
-  const showCustomInput = max > maxCount;
-  const presetItems = Array.from(
-    { length: Math.max(0, maxCount) },
-    (_, i) => i + 1
-  );
-  if (min <= 0) {
+  const showCustomInput = alwaysShowInput || max > maxCount;
+  const presetItems =
+    presetValues ??
+    Array.from({ length: Math.max(0, maxCount) }, (_, i) => i + 1);
+  if (!presetValues && min <= 0) {
     presetItems.unshift(0);
   }
   const items = presetItems;

src/pages/_components/number-selection/styles.less

@@ -39,9 +39,20 @@
     display: flex;
     align-items: center;
     padding: 0 12px;
+    padding-right: 2px;
     color: var(--ant-color-text-tertiary);
     white-space: nowrap;
     padding-block: 6px;
+    width: 100%;
+
+    // Spread the label and its labelExtra (e.g. the whole/sliced Segmented)
+    // to opposite ends of the row.
+    :global(.label-text) {
+      display: flex;
+      align-items: center;
+      justify-content: space-between;
+      width: 100%;
+    }
   }
   .contentWrapper {
     width: 100%;

src/pages/gpu-service/instances/components/instance-type-item.tsx

@@ -59,6 +59,9 @@ interface InstanceTypeItemProps {
 
 interface MetadataSectionProps {
   spec: InstanceTypeItemModel['spec'];
+  // status.onceMaxRequest.acceleratorSliced (max sliceable percentage). Shown
+  // next to Max for sliceable types.
+  slicedMaxPercentage?: number;
 }
 
 const MetaItem: React.FC<{
@@ -125,7 +128,8 @@ function getInstanceDerived(item: InstanceTypeItemModel) {
 }
 
 export const InstanceMetadataSection: React.FC<MetadataSectionProps> = ({
-  spec
+  spec,
+  slicedMaxPercentage
 }) => {
   const intl = useIntl();
 
@@ -133,6 +137,14 @@ export const InstanceMetadataSection: React.FC<MetadataSectionProps> = ({
     spec
   } as InstanceTypeItemModel);
 
+  // Sliceable types show "Max {n} · Sliceable {m}%" instead of just the count.
+  const showSliceable = !!spec.sliceable && (slicedMaxPercentage ?? 0) > 0;
+  const maxValue = showSliceable
+    ? `${spec.maxComputeUnitCount || 0} · ${intl.formatMessage({
+        id: 'gpuservice.instance.sliceable'
+      })} ${slicedMaxPercentage}%`
+    : `${spec.maxComputeUnitCount || 0}`;
+
   return (
     <Meta $columns={isGPU ? 11 : 7}>
       {isGPU && (
@@ -159,7 +171,7 @@ export const InstanceMetadataSection: React.FC<MetadataSectionProps> = ({
               },
               { count: '' }
             )}
-            value={`${spec.maxComputeUnitCount || 0}`}
+            value={maxValue}
           />
           {/* row 2: OS | Arch | CPU */}
           <MetaItem
@@ -278,7 +290,12 @@ const InstanceTypeItem: React.FC<InstanceTypeItemProps> = ({ item }) => {
           />
         </Flex>
       </Title>
-      <InstanceMetadataSection spec={specData}></InstanceMetadataSection>
+      <InstanceMetadataSection
+        spec={specData}
+        slicedMaxPercentage={
+          Number(item.status?.onceMaxRequest?.acceleratorSliced) || 0
+        }
+      ></InstanceMetadataSection>
     </Flex>
   );
 };

src/pages/gpu-service/instances/config/index.ts

@@ -262,15 +262,15 @@ export const getAcceleratorMax = (
 
 // Picks the candidate (cluster + type name) that should fulfill a requested
 // accelerator count: the first candidate of the smallest tier whose
-// onceMaxRequest.accelerator is >= the requested count and whose cpu/ram/localStorage
-// remaining are all > 0.
+// onceMaxRequest.accelerator is >= the requested count. Accelerated types are
+// not gated on CPU remaining (only CPU-only types are); in sliced mode the
+// candidate's acceleratorSliced remaining must also be > 0.
 export const pickCandidateForAccelerator = <
   C extends {
     cluster: string;
     name: string;
     cpu?: { remaining?: string | null } | null;
-    ram?: { remaining?: string | null } | null;
-    localStorage?: { remaining?: string | null } | null;
+    acceleratorSliced?: { remaining?: string | null } | null;
   }
 >(
   tiers:
@@ -280,14 +280,21 @@ export const pickCandidateForAccelerator = <
       }[]
     | undefined
     | null,
-  { count, acceleratable }: { count: number; acceleratable?: boolean }
+  {
+    count,
+    acceleratable,
+    sliced
+  }: { count: number; acceleratable?: boolean; sliced?: boolean }
 ): C | null => {
   if (!tiers?.length) return null;
 
-  const hasResources = (c: C) =>
-    parseQuantity(c.cpu?.remaining) > 0 &&
-    parseQuantity(c.ram?.remaining) > 0 &&
-    parseQuantity(c.localStorage?.remaining) > 0;
+  const hasResources = (c: C) => {
+    // Accelerated types are not gated on CPU remaining; CPU-only types are.
+    if (!acceleratable && parseQuantity(c.cpu?.remaining) <= 0) return false;
+    if (sliced && parseQuantity(c.acceleratorSliced?.remaining) <= 0)
+      return false;
+    return true;
+  };
 
   const sorted = [...tiers].sort(
     (a, b) =>

src/pages/gpu-service/instances/config/types.ts

@@ -45,6 +45,11 @@ export interface FormData {
       ram: string | null | number;
       localStorage: string | null | number;
       accelerator: number | string | null;
+      // Sliced (percentage) mode only. Memory (VRAM) percentage bound to the
+      // 10-100 selector + free input; cores (compute) percentage bound to the
+      // "100% compute" checkbox (100 when checked, mirrors memory otherwise).
+      acceleratorSlicedMemoryPercentage?: number;
+      acceleratorSlicedCoresPercentage?: number;
     };
     volume: {
       ephemeral?: {
@@ -128,8 +133,10 @@ export interface InstanceTypeCandidate {
   name: string;
   accelerator: InstanceTypeResource;
   cpu: InstanceTypeResource;
-  ram: InstanceTypeResource;
-  localStorage: InstanceTypeResource;
+  // Shared-mode available resource (not shown in the GPU Instance form).
+  acceleratorShared: InstanceTypeResource;
+  // Sliced-mode available resource.
+  acceleratorSliced: InstanceTypeResource;
 }
 
 export interface InstanceTypeTierOnceMaxRequestResource {
@@ -149,6 +156,8 @@ export interface InstanceTypeOnceMaxRequestResource {
   cpu: QuanityCPU;
   ram: QuanityMemory;
   localStorage: QuanityLocalStorage;
+  acceleratorShared: `${number}` | null;
+  acceleratorSliced: `${number}` | null;
 }
 
 export interface CPUCache {
@@ -181,6 +190,8 @@ export interface InstanceTypeSpec {
   family?: string | null;
   computeCapability?: string | null;
   sliced?: string | null;
+  sliceable?: boolean;
+  localStorage?: QuanityLocalStorage;
   maxComputeUnitCount?: number;
   unitResources?: {
     cpu: QuanityCPU;

src/pages/gpu-service/instances/forms/index.tsx

@@ -273,33 +273,94 @@ const GPUServiceInstanceForm: React.FC<InstanceFormProps> = forwardRef(
 
     const buildResourcesDataForSubmit = (values: FormData) => {
       const unitResourcesParsed = getUnitResources();
-      const accelerator = _.toNumber(values.spec?.resources?.accelerator) || 0;
-      const cpuCount = _.toNumber(values.spec?.resources?.cpu) || 0;
+      const resources = values.spec?.resources ?? ({} as any);
+      const accelerator = _.toNumber(resources.accelerator) || 0;
+      const cpuCount = _.toNumber(resources.cpu) || 0;
 
       const cpuNum = unitResourcesParsed?.cpu?.num;
       const ramNum = unitResourcesParsed?.ram?.num;
 
-      const fallbackCpu = values.spec?.resources?.cpu;
+      const fallbackCpu = resources.cpu;
 
-      const factor = isGPUType ? accelerator : cpuCount;
+      // Sliced mode: scale a single card's unit resources by the chosen
+      // percentage (floored) — both CPU and RAM. Whole/CPU mode: multiply the
+      // unit by the count.
+      const percentage = _.toNumber(
+        resources.acceleratorSlicedMemoryPercentage
+      );
+      const sliced = isGPUType && percentage > 0;
+      const wholeFactor = isGPUType ? accelerator : cpuCount;
+
+      const scale = (num: number, unit: string) =>
+        sliced
+          ? `${Math.max(1, _.floor((num * percentage) / 100))}${unit}`
+          : `${wholeFactor * num}${unit}`;
 
       return {
         cpu: cpuNum
-          ? `${factor * cpuNum}${unitResourcesParsed?.cpu?.unit || ''}`
+          ? scale(cpuNum, unitResourcesParsed?.cpu?.unit || '')
           : // Don't stringify an unset value — `${undefined}` becomes the
             // literal "undefined", which fails k8s quantity validation.
             fallbackCpu
             ? `${fallbackCpu}`
             : undefined,
         ram: ramNum
-          ? `${factor * ramNum}${unitResourcesParsed?.ram?.unit || ''}`
-          : values.spec?.resources?.ram
+          ? scale(ramNum, unitResourcesParsed?.ram?.unit || '')
+          : resources.ram
       };
     };
 
+    // Sliced display: set the (disabled) CPU / RAM inputs to a single card's
+    // unit resources scaled by the chosen percentage, floored. Reads the
+    // percentage straight from the form so it can be re-run after any slider
+    // change without threading values through.
+    const applySlicedResourceScaling = () => {
+      const unitResourcesParsed = getUnitResources();
+      const cpuCores = unitResourcesParsed?.cpu?.cores;
+      const ramValue = unitResourcesParsed?.ram?.value;
+      const percentage = _.toNumber(
+        form.getFieldValue([
+          'spec',
+          'resources',
+          'acceleratorSlicedMemoryPercentage'
+        ])
+      );
+
+      form.setFieldsValue({
+        spec: {
+          resources: {
+            cpu:
+              cpuCores != null && percentage > 0
+                ? Math.max(1, _.floor((cpuCores * percentage) / 100))
+                : null,
+            ram:
+              ramValue != null && percentage > 0
+                ? Math.max(1, _.floor((ramValue * percentage) / 100))
+                : null
+          }
+        }
+      } as any);
+    };
+
+    // Single entry point for the sliced memory ratio: write the ratio (compute
+    // stays pinned at 100%) and rescale CPU / RAM off it. Reused by the slider
+    // onChange and by the sliced-mode defaults so both share one path.
+    const applySliceMemoryPercentage = (value: number) => {
+      form.setFieldsValue({
+        spec: {
+          resources: {
+            acceleratorSlicedMemoryPercentage: value,
+            acceleratorSlicedCoresPercentage: 100
+          }
+        }
+      } as any);
+      applySlicedResourceScaling();
+    };
+
     const resolveAndApply = (
       instanceType: InstanceTypeItem | undefined,
-      count: number
+      count: number,
+      sliced?: boolean
     ) => {
       if (!instanceType) {
         setSelectedInstanceType(undefined);
@@ -328,7 +389,8 @@ const GPUServiceInstanceForm: React.FC<InstanceFormProps> = forwardRef(
         instanceType.status?.tiers,
         {
           count,
-          acceleratable: instanceType.spec?.acceleratable
+          acceleratable: instanceType.spec?.acceleratable,
+          sliced
         }
       );
 
@@ -336,9 +398,12 @@ const GPUServiceInstanceForm: React.FC<InstanceFormProps> = forwardRef(
 
       setOnceMaxRequest({
         cpu: ceilMilliToCore(candidate?.cpu?.onceMaxRequest)?.cores,
-        memory: parseQuantityToGi(candidate?.ram?.onceMaxRequest)?.value,
-        localStorage: parseQuantityToGi(candidate?.localStorage?.onceMaxRequest)
-          ?.value
+        // candidate no longer carries ram/localStorage: memory max comes from
+        // the type-level onceMaxRequest.ram (already parsed to a Gi number by
+        // the query hook), disk max from spec.localStorage (UI-only cap).
+        memory: _.toNumber(instanceType.status?.onceMaxRequest?.ram) || null,
+        localStorage:
+          parseQuantityToGi(instanceType.spec?.localStorage)?.value ?? null
       });
 
       form.setFieldsValue({
@@ -354,8 +419,44 @@ const GPUServiceInstanceForm: React.FC<InstanceFormProps> = forwardRef(
       });
     };
 
+    // Whole-card (exclusive) vs sliced (percentage) mode. Only meaningful for
+    // sliceable accelerator types; derived (no persisted field) — on edit/
+    // recreate it is inferred from acceleratorSlicedMemoryPercentage > 0.
+    const [sliceMode, setSliceMode] = useState<'whole' | 'sliced'>('whole');
+
     const handleAcceleratorChange = (count: number) => {
-      resolveAndApply(selectedInstanceType, count);
+      resolveAndApply(selectedInstanceType, count, false);
+    };
+
+    // Seed the sliced-mode default ratio for an instance type: 10% but never
+    // above the type's max sliceable ratio (status.onceMaxRequest
+    // .acceleratorSliced). Shares applySliceMemoryPercentage with the slider.
+    const applySlicedDefaults = (instanceType?: InstanceTypeItem) => {
+      const slicedMax =
+        _.toNumber(instanceType?.status?.onceMaxRequest?.acceleratorSliced) ||
+        0;
+      applySliceMemoryPercentage(slicedMax ? Math.min(10, slicedMax) : 10);
+    };
+
+    // Toggle between whole-card and sliced mode. Sliced fixes the accelerator
+    // count to 1 (a single card is partitioned by percentage) and clears the
+    // slice-percentage fields when leaving sliced mode.
+    const handleSliceModeChange = (mode: 'whole' | 'sliced') => {
+      setSliceMode(mode);
+      if (mode === 'sliced') {
+        resolveAndApply(selectedInstanceType, 1, true);
+        applySlicedDefaults(selectedInstanceType);
+      } else {
+        form.setFieldsValue({
+          spec: {
+            resources: {
+              acceleratorSlicedMemoryPercentage: undefined,
+              acceleratorSlicedCoresPercentage: undefined
+            }
+          }
+        } as any);
+        resolveAndApply(selectedInstanceType, 1, false);
+      }
     };
 
     const onTargetChange = (key: string) => {
@@ -407,6 +508,14 @@ const GPUServiceInstanceForm: React.FC<InstanceFormProps> = forwardRef(
           ? _.toNumber(currentData?.spec?.resources?.accelerator)
           : _.toNumber(currentData?.spec?.resources?.cpu) || 0;
 
+        // Infer the mode from the persisted slice percentage (recreate keeps
+        // the section editable; edit/view render a readonly card).
+        const persistedSliced =
+          _.toNumber(
+            currentData?.spec?.resources?.acceleratorSlicedMemoryPercentage
+          ) > 0;
+        setSliceMode(persistedSliced ? 'sliced' : 'whole');
+
         form.setFieldsValue({
           ...currentData,
           spec: {
@@ -424,6 +533,12 @@ const GPUServiceInstanceForm: React.FC<InstanceFormProps> = forwardRef(
           enable_ssh: !!currentData?.spec?.sshPublicKeys?.length,
           storageMode: detectMode(currentData?.spec?.volume)
         });
+
+        // buildResourcesData above filled CPU / RAM for the whole card; rescale
+        // them off the persisted percentages when recreating a sliced instance.
+        if (persistedSliced) {
+          applySlicedResourceScaling();
+        }
       }
     }, [action, currentData, form, open, realAction, instanceTypeList]);
 
@@ -492,11 +607,30 @@ const GPUServiceInstanceForm: React.FC<InstanceFormProps> = forwardRef(
       getFieldsValue: () => form.getFieldsValue(),
       applyInstanceType: (instanceType?: InstanceTypeItem) => {
         if (!instanceType) {
+          setSliceMode('whole');
           resolveAndApply(undefined, 0);
           return;
         }
 
-        // set default  to 1, for all instance types: GPU or non-GPU
+        // A sliceable type with no whole-card capacity (Max < 1) defaults to
+        // sliced mode — whole mode would have nothing selectable.
+        const wholeMax = instanceType.spec?.maxComputeUnitCount ?? 0;
+        const slicedMax =
+          _.toNumber(instanceType.status?.onceMaxRequest?.acceleratorSliced) ||
+          0;
+        const defaultSliced =
+          !!instanceType.spec?.sliceable && wholeMax < 1 && slicedMax > 0;
+
+        if (defaultSliced) {
+          setSliceMode('sliced');
+          resolveAndApply(instanceType, 1, true);
+          applySlicedDefaults(instanceType);
+          return;
+        }
+
+        // Otherwise default to whole-card mode (a new type may not be
+        // sliceable); set count to 1 for all instance types: GPU or non-GPU.
+        setSliceMode('whole');
         resolveAndApply(instanceType, 1);
       }
     }));
@@ -607,6 +741,9 @@ const GPUServiceInstanceForm: React.FC<InstanceFormProps> = forwardRef(
                       currentData={currentData as any}
                       onceMaxRequest={onceMaxRequest}
                       noAvailableTypes={noAvailableInstanceTypes}
+                      sliceMode={sliceMode}
+                      onSliceModeChange={handleSliceModeChange}
+                      onSliceMemoryPercentageChange={applySliceMemoryPercentage}
                       onGPUCountChange={handleAcceleratorChange}
                     />
                   )

src/pages/gpu-service/instances/forms/instance-type.tsx

@@ -3,7 +3,7 @@ import { PageActionType } from '@/config/types';
 import NumberSelection from '@/pages/_components/number-selection';
 import { InputNumber } from '@gpustack/core-ui';
 import { useIntl } from '@umijs/max';
-import { Flex, Form } from 'antd';
+import { Flex, Form, Segmented } from 'antd';
 import _ from 'lodash';
 import { useContext, useMemo } from 'react';
 import styled from 'styled-components';
@@ -57,6 +57,9 @@ const InstanceTypePicker: React.FC<InstanceTypePickerProps> = ({
   );
 };
 
+// Fixed 10-tick percentage scale (10..100) for the sliced (percentage) mode.
+const SLICE_PERCENT_TICKS = [10, 20, 30, 40, 50, 60, 70, 80, 90, 100];
+
 interface InstanceTypeFormItemProps {
   action: PageActionType;
   disabled?: boolean;
@@ -67,6 +70,12 @@ interface InstanceTypeFormItemProps {
   // org owns no clusters. Surface a "no available" message instead of the
   // "please select" placeholder + empty CPU / memory inputs.
   noAvailableTypes?: boolean;
+  // Whole-card (exclusive) vs sliced (percentage) mode. Owned by the parent
+  // form (it drives candidate picking + the fixed accelerator=1 for sliced).
+  sliceMode?: 'whole' | 'sliced';
+  onSliceModeChange?: (mode: 'whole' | 'sliced') => void;
+  // Commit a new sliced memory ratio (writes the field + rescales CPU / RAM).
+  onSliceMemoryPercentageChange?: (value: number) => void;
   onGPUCountChange?: (value: number) => void;
 }
 
@@ -77,9 +86,13 @@ const InstanceTypeFormItem: React.FC<InstanceTypeFormItemProps> = ({
   selectedInstanceType,
   onceMaxRequest,
   noAvailableTypes,
+  sliceMode = 'whole',
+  onSliceModeChange,
+  onSliceMemoryPercentageChange,
   onGPUCountChange
 }) => {
   const intl = useIntl();
+  const form = Form.useFormInstance();
   const { isGPUType } = useContext(FormContext);
 
   const maxComputeUnitCount = useMemo(() => {
@@ -104,6 +117,60 @@ const InstanceTypeFormItem: React.FC<InstanceTypeFormItemProps> = ({
     onGPUCountChange?.(value);
   };
 
+  // Sliced mode is only offered for sliceable accelerator types, and only when
+  // the section is editable (create / recreate; edit renders a readonly card).
+  const showModeSwitch =
+    action !== PageAction.EDIT &&
+    isGPUType &&
+    !!selectedInstanceType?.spec?.sliceable;
+
+  const handleModeChange = (value: string) => {
+    onSliceModeChange?.(value as 'whole' | 'sliced');
+  };
+
+  // Memory (VRAM) percentage changed via the slider/input — forward the new
+  // value so the parent writes the field and rescales CPU / RAM.
+  const handleMemoryPercentageChange = (value: number) => {
+    onSliceMemoryPercentageChange?.(value);
+  };
+
+  const modeSegmented = showModeSwitch ? (
+    <Segmented
+      size="small"
+      shape="round"
+      style={{ fontSize: 12 }}
+      value={sliceMode}
+      disabled={disabled}
+      onChange={handleModeChange}
+      options={[
+        {
+          label: intl.formatMessage({ id: 'gpuservice.instance.mode.whole' }),
+          value: 'whole'
+        },
+        {
+          label: intl.formatMessage({ id: 'gpuservice.instance.mode.sliced' }),
+          value: 'sliced'
+        }
+      ]}
+    />
+  ) : null;
+
+  const isSliced = showModeSwitch && sliceMode === 'sliced';
+
+  // Max selectable ratio in sliced mode: status.onceMaxRequest.acceleratorSliced
+  // (a percentage). Ticks above it stay visible but disabled.
+  const slicedMaxPercentage =
+    _.toNumber(
+      selectedInstanceType?.status?.onceMaxRequest?.acceleratorSliced
+    ) || 0;
+
+  // When the max ratio is below 10%, switch the ticks to a finer 1..10 scale
+  // so small slices are still selectable; otherwise use the 10..100 scale.
+  const sliceTicks =
+    slicedMaxPercentage < 10
+      ? [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+      : SLICE_PERCENT_TICKS;
+
   const renderMaxLabel = (
     label: React.ReactNode,
     max?: number | null
@@ -206,7 +273,7 @@ const InstanceTypeFormItem: React.FC<InstanceTypeFormItemProps> = ({
               : ['spec', 'resources', 'cpu']
           }
           preserve
-          hidden={action === PageAction.EDIT}
+          hidden={action === PageAction.EDIT || isSliced}
           normalize={(value) => (value != null ? _.toString(value) : undefined)}
           getValueProps={(value) => ({
             value: value != null ? _.toNumber(value) : undefined
@@ -247,6 +314,7 @@ const InstanceTypeFormItem: React.FC<InstanceTypeFormItemProps> = ({
             max={maxComputeUnitCount}
             step={1}
             required
+            labelExtra={sliceMode === 'whole' ? modeSegmented : undefined}
             disabled={disabled || action === PageAction.EDIT}
             label={`${intl.formatMessage({ id: 'common.max.count' }, { label: numberSelectionLabel.label })} (${intl.formatMessage(
               {
@@ -257,6 +325,89 @@ const InstanceTypeFormItem: React.FC<InstanceTypeFormItemProps> = ({
           />
         </Form.Item>
       )}
+      {!noAvailableTypes && isSliced && (
+        <FieldBlock>
+          <Form.Item<FormData>
+            name={['spec', 'resources', 'acceleratorSlicedMemoryPercentage']}
+            getValueProps={(value) => ({
+              value: value != null ? _.toNumber(value) : undefined
+            })}
+            rules={[
+              {
+                required: true,
+                validator: (_, value) => {
+                  const num = Number(value);
+                  if (value == null || value === '' || Number.isNaN(num)) {
+                    return Promise.reject(
+                      new Error(
+                        intl.formatMessage({
+                          id: 'gpuservice.instance.slice.percentage.required'
+                        })
+                      )
+                    );
+                  }
+                  if (num > slicedMaxPercentage || num <= 0) {
+                    return Promise.reject(
+                      new Error(
+                        intl.formatMessage(
+                          {
+                            id: 'gpuservice.instance.slice.percentage.max'
+                          },
+                          { count: slicedMaxPercentage }
+                        )
+                      )
+                    );
+                  }
+                  return Promise.resolve();
+                }
+              }
+            ]}
+          >
+            <NumberSelection
+              min={1}
+              max={slicedMaxPercentage}
+              step={1}
+              maxCount={sliceTicks.length}
+              presetValues={sliceTicks}
+              alwaysShowInput
+              required
+              disabled={disabled}
+              onChange={handleMemoryPercentageChange}
+              labelExtra={modeSegmented}
+              label={intl.formatMessage({
+                id: 'gpuservice.instance.slice.memoryPercentage'
+              })}
+            />
+          </Form.Item>
+          {/* Compute (cores) percentage is fixed at 100. Kept in the form via a
+              hidden item so it rides along on submit. */}
+          <Form.Item<FormData>
+            name={['spec', 'resources', 'acceleratorSlicedCoresPercentage']}
+            hidden
+          >
+            <InputNumber />
+          </Form.Item>
+        </FieldBlock>
+      )}
+      {/* Edit renders a readonly card (no sliced UI), so register the slice
+          percentages as hidden fields — otherwise their persisted values are
+          dropped from the submit payload. */}
+      {action === PageAction.EDIT && (
+        <>
+          <Form.Item<FormData>
+            name={['spec', 'resources', 'acceleratorSlicedMemoryPercentage']}
+            hidden
+          >
+            <InputNumber />
+          </Form.Item>
+          <Form.Item<FormData>
+            name={['spec', 'resources', 'acceleratorSlicedCoresPercentage']}
+            hidden
+          >
+            <InputNumber />
+          </Form.Item>
+        </>
+      )}
       {!noAvailableTypes && (
         <Flex gap={12}>
           <div style={{ flex: 1 }}>
@@ -281,11 +432,7 @@ const InstanceTypeFormItem: React.FC<InstanceTypeFormItemProps> = ({
                 key="cpu_input"
                 preserve
               >
-                <InputNumber
-                  label={'CPU'}
-                  max={onceMaxRequest?.cpu ?? undefined}
-                  disabled={true}
-                />
+                <InputNumber label={'CPU'} disabled={true} />
               </Form.Item>
             </div>
           )}

src/pages/gpu-service/instances/services/use-query-instance-types.ts

@@ -36,6 +36,20 @@ export default function useQueryInstanceTypes() {
     }
 
     const max = getAcceleratorMax(item.status?.tiers);
+
+    // Sliceable types stay selectable as long as either whole-card or sliced
+    // capacity remains; unavailable only when both status.onceMaxRequest
+    // .accelerator and .acceleratorSliced are 0.
+    if (item.spec?.sliceable) {
+      const wholeMax = Number(item.status?.onceMaxRequest?.accelerator) || 0;
+      const slicedMax =
+        Number(item.status?.onceMaxRequest?.acceleratorSliced) || 0;
+      return {
+        maxComputeUnitCount: max || 0,
+        available: wholeMax > 0 || slicedMax > 0
+      };
+    }
+
     return {
       maxComputeUnitCount: max || 0,
       available: (max || 0) > 0

src/pages/gpu-service/instances/utils/render-instance-type.tsx

@@ -11,7 +11,7 @@
  * with ``buildInstanceTypeRecordFromMiB`` and feed it here.
  */
 import _ from 'lodash';
-import { parseJsonSafe } from '../../utils';
+import { parseJsonSafe, parseQuantityToGi } from '../../utils';
 import InstanceTypeCell from '../components/instance-type-cell';
 import { formatMemoryDisplay } from '../config';
 import { InstanceTypeSpec, ListItem } from '../config/types';
@@ -49,6 +49,10 @@ const buildResourcesData = (
   return {};
 };
 
+// Memory (VRAM) percentage for a sliced instance; 0 when not sliced.
+const getSliceMemoryPercentage = (record: ListItem) =>
+  _.toNumber(record.spec?.resources?.acceleratorSlicedMemoryPercentage) || 0;
+
 const formatResources = (
   instanceTypeSpec: { spec: InstanceTypeSpec },
   record: ListItem
@@ -71,6 +75,34 @@ const formatResources = (
     };
   }
 
+  const sliceMemoryPercentage = getSliceMemoryPercentage(record);
+
+  // Sliced: CPU / RAM carry the already-scaled values on spec.resources, and
+  // VRAM is the per-card memory scaled by the memory percentage (floored,
+  // min 1) — not the whole card's size.
+  if (sliceMemoryPercentage > 0) {
+    const vramGi = parseQuantityToGi(
+      (instanceTypeSpec.spec as any)?.memory
+    )?.value;
+    const vram =
+      vramGi != null
+        ? `${Math.max(1, _.floor((vramGi * sliceMemoryPercentage) / 100))} GB`
+        : undefined;
+
+    return {
+      cpu: record.spec?.resources?.cpu
+        ? `${record.spec?.resources?.cpu} vCPU`
+        : '-',
+      ram: record.spec?.resources?.ram
+        ? toGB(record.spec?.resources?.ram)
+        : '-',
+      vram,
+      localStorage: record.spec?.resources?.localStorage
+        ? toGB(record.spec?.resources?.localStorage)
+        : undefined
+    };
+  }
+
   // VRAM = per-card GPU memory (a single card's size; not aggregated across
   // cards — the model's marquee spec).
   const vram = formatMemoryDisplay((instanceTypeSpec.spec as any)?.memory);
@@ -108,10 +140,14 @@ export const renderInstanceType = (
     parseJsonSafe<any>(record?.description || '{}', {}).spec || {};
   const resources = formatResources({ spec: description }, record);
   const accelerator = record.spec?.resources?.accelerator;
+  const sliceMemoryPercentage = getSliceMemoryPercentage(record);
+  const isSliced = description.acceleratable && sliceMemoryPercentage > 0;
   const title =
     options.title ??
     (description.acceleratable
-      ? `${description.product} x ${accelerator}`
+      ? isSliced
+        ? `${description.product} (${sliceMemoryPercentage}%)`
+        : `${description.product} x ${accelerator}`
       : 'CPU Only');
 
   const volume = (record.spec as any)?.volume;
@@ -131,10 +167,16 @@ export const renderInstanceType = (
       icon: 'icon-gpu',
       name: 'GPU',
       rows: [
-        [
-          intl.formatMessage({ id: 'gpuservice.table.count' }),
-          accelerator ? `${accelerator}` : undefined
-        ],
+        // Sliced instances show the ratio instead of a card count (always 1).
+        isSliced
+          ? [
+              intl.formatMessage({ id: 'gpuservice.instance.sliced' }),
+              `${sliceMemoryPercentage}%`
+            ]
+          : [
+              intl.formatMessage({ id: 'gpuservice.table.count' }),
+              accelerator ? `${accelerator}` : undefined
+            ],
         [
           intl.formatMessage({ id: 'gpuservice.instance.section.type' }),
           description.product